1370s

The 1370s was a decade of the Julian Calendar which began on January 1, 1370, and ended on December 31, 1379.

Events

January–March

• January 2 – In France, the war over the autonomous state of Provence, launched by King Charles V's brother, the Duke of Anjou, against the ruling countess, Queen Joanna I of Naples, is halted by a truce forced by the invention of Pope Urban V and King Charles.
• January 6 – 11 (Tubah 1086 AM) Pope Gabriel IV is consecrated as the new leader of the Coptic Orthodox Church for the Coptic Christians of Egypt, and assumes the title of Bishop of Alexandria, succeeding the late Pope Yoannis X, who had died eight months earlier.
• January 9 – The funeral of the late Queen Philippa, who had served as Queen consort of England for 61 years as the wife of King Edward III, is held at Westminster Abbey.
• February 18 – The Battle of Rudau is fought between the Teutonic Knights and the Grand Duchy of Lithuania near Rudau village, north of Königsberg (now Melnikovo village in the Kaliningrad oblast). According to the Teutonic chronicler Wigand of Marburg and the Livonian chronicle of Hermann de Wartberge, the Lithuanians suffer a great defeat.
• March 20 – King David II of Scotland divorces his wife and queen consort of six years, Margaret Drummond. Queen Margaret then travels to Avignon and persuades Pope Urban V to rescind the divorce before King David dies the next year.
• March 27 – Antonio Ballester of Catalonia is appointed as the Latin Archbishop of Athens by Pope Urban VI.

April–June

• April 9 – Timur becomes first Amir of the Timurid Empire, following the Siege of Balkh which establishes his rule over the Chagatai Khanate, completing his conquest of Central Asia and parts of Persia.
• May 23 – Emperor Huizong, who was the last Chinese ruler of the Yuan dynasty (from 1333 to 1368) and ruler of a portion of Inner Mongolia after his defeat in 1368, dies at the age of 49.
• May 24 – The Treaty of Stralsund ends the second war between Denmark and the Hanseatic League, an alliance of market towns across northern Europe along the North Sea and the Baltic Sea.
• June 6 – At Yingchang, now part of the Hexigten province of China's Inner Mongolia autonomous region, Biligtü Khan Ayushiridara is crowned as Emperor of the Northern Yuan, the remaining portion of the Chinese territory that had been ruled by the Yuan dynasty prior its overthrow in 1368 by the rulers of the Ming dynasty. Prince Ayushiridara is the son of the late Emperor Huizong of Yuan.

July–September

• July 16 – An agreement is signed between Spain's King Pedro IV of Aragon and King Charles V of France for the marriage of Juan, Duke of Girona, heir to King Pedro, and Princess Jeanne de Valois, the aunt of King Charles. However, before the marriage can take place, Jeanne dies in 1371 while traveling to meet Prince Juan.
• August 16 – (24th day of 7th month, Shōhei 25) The Japanese era Kentoku begins to reflect the reign of the southern Emperor Chōkei
• September 9 – King Casimir III of Poland sustains a complicated fracture of his left leg when he is thrown from a horse while deer hunting outside the village of Zeleznica.' When he ignores medical advice, his injury becomes infected and he dies of sepsis less than two months later.
• September 19 – The Siege of Limoges takes place in the course of the Hundred Years' War as the English Army, led by Edward the Black Prince, retakes the of Limoges from the French by storm with wide destruction, effectively ending the Limoges enamel industry.

October–December

• October 20 – Philip of Anjou, Titular Emperor of Constantinople, marries his second wife Elizabeth of Slavonia (daughter of Stephen of Anjou and Margaret of Bavaria).
• November 5 – Casimir III the Great, king of Poland, dies two months after being injured in an accident while hunting, and is succeeded jointly by his sister, Elizabeth of Kujavia, and her son, Louis I of Hungary, beginning the rule of the country by the Capet-Anjou family.
• November 15 – Trần Nghệ Tông deposes Dương Nhật Lễ as emperor of Đại Việt, modern-day Vietnam.
• November 26 – Lithuanian–Muscovite War: In retaliation for the attack by the Grand Principality of Moscow on Tver and Bryansk, the Grand Duchy of Lithuania and the Principality of Tver begin a two-day siege of the Muscovite city of Volokolamsk. While the leader of Volokolamsk's defenses, Prince Vasily Ivanovich Berezuysky, is killed, the attackers end the siege without capturing the city, and then march toward Moscow.
• December 4 – In the Battle of Pontvallain, fought in the Hundred Years' War, a French army under Bertrand du Guesclin heavily defeats an English force in surprise attacks in northwest France.
• December 6 – Algirdas, Grand Duke of Lithuania, leads a siege of Moscow itself, the capital of the Grand Principality, and his forces burn and pillage the city as Moscow's Grand Prince Dmitry Donskoy retreats to the safety of the Kremlin. Donskoy's allies, his cousin Vladimir the Bold of Serpukhov and Prince Vladimir Dmitrievich Yaroslavich of Pronsk, come to Moscow's aid.
• December 14 – Moscow and Lithuania reach a truce to end the Lithuanian siege and Grand Duke Algirdas and his Lithuanian forces withdraw.
• December 20 – The 200th Roman Catholic pontiff, Pope Urban V, dies in Avignon after eight years, the first five of which were in Rome.
• December 30 – Cardinal Pierre de Beaufort, nephew of the late Pope Clement VI, is unanimously elected as the new Pope by 18 of the 20 Roman Catholic cardinals at Avignon. Beaufort takes the name Pope Gregory XI and is crowned six days later.

Date unknown

• Khun Luang Pa-Ngua, ruler of Suphanburi, marches and usurps the throne of the Ayutthaya Kingdom.
• The city of Xi'an in Ming dynasty China is given a new defensive city wall.
• Hugues Aubriot begins construction of the fortress of the Bastille in Paris.
• The steel crossbow is first used as a weapon of war.

January–March

• January 5 – Six days after his election to lead the Roman Catholic Church, Pierre Roger de Beaufort is crowned as Pope Gregory XI. The coronation is performed by the protodeacon Rinaldo Orsini at the Avignon Cathedral.
• January 8 – King Edward II summons the members of the House of Lords and House of Commons to assemble at Westminster for a one-month session of the English Parliament.
• January – Edward the Black Prince, gives up the administration of Aquitaine and returns to England, because of his poor health and heavy debts.
• February 1 – War of the Lüneburg Succession: In what is now the state of Lower Saxony in north Germany, after the Duke of Brunswick, Magnus Torquatus, attempts to claim his inheritance to rule of the Principality of Lüneburg, residents of the town of Lüneburg destroy the ducal castle that had been owned by the late Prince Wilhelm, and Brunswick relocates his residence to the town of Celle.
• February 17 – Rival brothers Ivan Sratsimir and Ivan Shishman become co-Emperors of Bulgaria after the death of their father, Ivan Alexander. Bulgaria is weakened by the split.
• February 22 – Robert II becomes the first Stuart king of Scotland, after the death of his uncle, King David II, prompting a rebellion by the Earl of Douglas.
• February 24 – The English Parliament opens its session at Westminster.
• March 26 – The coronation of Robert II as King of Scotland takes place at Scone Abbey.
• March 28 – The London Charterhouse, a Carthusian monastery, is founded in Aldersgate.
• March 29 – The English Parliament closes and King Edward II gives royal assent to laws passed during its session, including the confirmation of the Great Charter of the Forest, as well as defining "the penalty of him that setteth up or enhanceth wares" and a ban against enforcement, without consent, of the law of sylva caedua, a tithe to the church of a portion of any timber of 20 years growth.

April–June

• April 9 – Emperor Go-En'yu of Japan succeeds Emperor Go-Kōgon of the Northern Court of Japan.
• May 17 – The Lordship of Milan expands its holdings when Feltrino Gonzaga sells almost all of his holdings of Reggio di Lombardia to the Lords Galeazzo and Bernabo Visconti, with the exception of Novellara and Bagnolo.
• May 30 – Pope Gregory XI names 12 new Roman Catholic cardinals to supplement the existing 20 living cardinals. The new cardinals at Avignon include Robert de Geneve who will become the first antipope of the Western Schism.
• May – Under the direction of Zhu Yuanzhang, the Emperor Hongwu, the Ming conquest of Xia begins as troops from China, led by Generals Fu Youde and Tang He invade what is now the Sichuan province from the north, while Admiral Liao Yongzhong leads an attack on Xia's east coast and along the Yangtze river.
• June 24 – In punishment for his malfeasance as regent during the reign of King David II, the property of William III, Earl of Ross at Inverness is confiscated by King Robert II.

July–September

• July 21 – John of Gaunt, Duke of Lancaster, resigns his command from the English Army and abandons the attempt to recapture the Duchy of Aquitaine, but remains in France.
• August 22 – Brabant is unexpectedly defeated by the Duchy of Jülich at the Battle of Baesweiler.
• September 21 – John of Gaunt, son of King Edward III of England, marries Constance of Castile, daughter of King Pedro of Castile, giving John a claim to the throne of Castile.
• September 26 – In the Battle of Maritsa, troops led by Lala Shahin Pasha and Hacı İlbey from the Ottoman Empire overwhelm and kill most of the Serbian defenders, including King Vukašin, his brother Prince Jovan Uglješa, and most of the lords of the Mrnjavčević family. The victory paves the way for the Ottoman Empire to expand into the Balkan Peninsula.

October–December

• October 21 – An attempt on Saint Ursula's Day by the Duke of Brunswick, to defeat the uprising in the principality of Luneberg and to reclaim his title, is unsuccessful.
• November 18 – Shen-Chi and Chang-Jhing-Chi, diplomatic envoys from China, land in Java to deliver a message from the Chinese Emperor to Muhammad Shah of Brunei.
• November 26 – In the Kingdom of Goryeo (now sections of North Korea and South Korea), King Gongmin names his Shin-Bi as his royal consort and primary wife.
• December 4 – Stefan Uroš V, the Tsar of Serbia and King of the Greeks since 1346, dies childless at the age of 35. Marko Mrnjavčević, the young son of the late co-ruler of Serbia, King Vukasin, is designated as the nominal Emperor, although Prince Lazar Hrebeljanović controls most of the remaining territory of the Serbian Empire.

Date unknown

• The first widely accepted historical reference is made to playing cards (in Spain).
• Polish priest Andrzej Jastrzębiec becomes the first bishop of Siret, thus bringing Catholicism to Moldavia.
• Zhao Bing Fa becomes King of Mong Mao (in modern-day south China/north Myanmar) after the death of his father, Si Kefa.
• Kalamegha claims the vacant title of King of Cambodia after the power of the Thai invaders from Ayutthaya begins to weaken. The Ayutthayans are finally expelled in 1375.
• Byzantine co-emperor John V Palaiologos pledges loyalty to the Ottoman Empire, to prevent the Turks from invading Constantinople.
• The Hongwu Emperor of the Ming dynasty in China introduces the census registration system of lijia, or the hundreds-and-tithing system, throughout the Yangzi Valley. This system groups households into units of ten and groups of one hundred, whereupon their capacities for paying taxes and providing the state with corvée labor service can be assessed. The system becomes fully operational in 1381, when it counts 59,873,305 people living in China (the historian Timothy Brook asserts that the number was much higher, somewhere between 65 million and 75 million).

January–March

• January 6 – The coronation of Peter the Fat as King Peter II of Cyprus takes place in Nicosia at the Greek Orthodox Cathedral of Saint Sophia (now the Selimiye Mosque). Peter had become the ruler of Cyprus at age 14 upon the death of his father, King Peter I.
• January 17 – Frederick the Simple, King of Sicily, agrees to marry Antonia of Baux, as part of negotiations for a peace treaty between Sicily and the Kingdom of Naples and Neapolitan and Papal recognition of his right to the throne. The marriage will take place the next year on November 26, 1373.
• January 29 – John of Gaunt, Duke of Lancaster and the third son of England's King Edward III, begins a claim to the throne of Spain's Crown of Castile after his September 21 marriage to Princess Constance of Castile. King Pedro of Castile, who was killed by his brother, who took control as King Enrique II, in 1369.
• February 21 – Jean, County of Montfort, Duke of Brittany makes a secret agreement with the Kingdom of England to allow English troops to pass through the lands he owns during the English war with France, event though he had previously allied with King Charles V of France in the same war.
• March 8 – In the Holy Roman Empire, the Archbishop-Elector of Trier, Kuno II von Falkenstein and the Archbishop-Elector of Köln, Friedrich III. von Saarwerden, become co-founders of their own mint abd begin production of being the minting of coins, including the "Weisspfennig" (the "white penny").
• March 12 – Saint Bridget sets out on a pilgrimage to the Holy Land, staying in Cyprus until May 12. In August, she is in Bethlehem where she sees a vision of Jesus' birth. In September, she sets sail for Naples, where she arrives in December.
• March 14 – Charles IV, Holy Roman Emperor, signs a deed in Wrocław, acknowledging the sovereignty of King Louis I of Hungary as ruler of Hungary, Croatia and Poland.

April–June

• April 8 – King Robert II of Scotland issues a Royal Charter granting royal burgh status to the town of Irvine, North Ayrshire, a status that lasts for 603 years until royal burghs are abolished in 1975.
• April 13 – Saint Bridget and her fellow pilgrims arrive at Famagusta in Cyprus, after their ship has survived a five-day storm that they had encountered after departing from Asia Minor.
• May 10 – Owain Lawgoch makes a second attempt to take the throne of Wales, sailing with French support from Harfleur, and issues a declaration of war against England for "having treacherously and covetously... slain my ancestors, kings of Wales," as well as having "by force and power appropriated" the country and submitted its people to divers services, the which country is, and should be, mine by right of succession, by kindred, by heritage, and by right of descent from my ancestors the kings of that country." After attacking the island of Guernsey, Lawgoch will abandon the invasion in order to fight for France at La Rochelle.
• May 13 – St. Bridget and her fellow pilgrims finally arrive at Jerusalem on Ascension Day after a two-month journey.
• June 22 – The Kingdom of France and the Crown of Castile defeat the Kingdom of England in the Battle of La Rochelle, and France gains control of the English Channel for the first time since 1340.

July–September

• July 10 – The Treaty of Tagilde is signed between Ferdinand I of Portugal and representatives of John of Gaunt of England, marking the beginning of the Anglo-Portuguese Alliance, which remains in effect into the 21st century.
• August 20 – Peace is declared between the Kingdom of Sicily and the Kingdom of Naples with the signing of the Treaty of Villeneuve between Joanna of Anjou (ruler of Naples) and King Frederick IV of Aragon (ruler of Sicily).
• September 15 – Jayasthiti Malla becomes the new King of Nepal when he overthrows King Jayarjunadeva, who had ruled since 1360.

October–December

• October 10 – King Peter II of Cyrpus is crowned as King of Jerusalem at a ceremony in Famagusta, although the Christian kingdom in Jerusalem had been dissolved 80 years earlier after the "Holy Land" fell to Muslim control in 1291. Although leaders of the Genoese and Venetian communities at Famagusta appear together at symbolic ceremonies to hold the two reins of the King's horse, an argument over which leader would hold the rein on the right and who would hold the remaining rein on the left leads to a fight between the two communities after the Venetian leader is allowed to hold the rein on the right. With the Venetian winning the privilege, the Republic of Genoa organizes an expedition to invade and conquer Cyprus.
• October 24 – (22 Rabi’ al-Thani 774 AH) ; Four-year-old Muhammad III ibn Abd al-Aziz succeeds his father, Abu Faris Abd al-Aziz I, as Marinid Sultan of Morocco.
• November 9 – Trần Duệ Tông succeeds his brother Trần Nghệ Tông as King of Vietnam.
• December 2 – Ruprecht and his brothers Waclaw, Boleslaw and Henryk sign an agreement that they will not divide the Duchy of Legnica (in Poland) for at least 10 years, having jointly inherited from their father, Waclaw the First.
• December 30 – ( 4th waxing of Pyatho, 734 ME. A major earthquake strikes what is now Myanmar during the reign of King Swa Saw Ke over the Kingdom of Ava.

Date unknown

• Encounter of Sintra: Twenty Portuguese knights rout four hundred Castilian infantrymen of the country.
• The Kingdom of Chūzan, ruled by King Satto on the island of Okinawa, in Japan) enters tributary relations with Ming dynasty China by way of an envoy, Yang Zai, sent by the Emperor Zhu Yuanzhang.
• Newaya Maryam succeeds his father, Newaya Krestos, as ruler of Ethiopia.
• The city of Aachen, Germany, begins adding a Roman numeral Anno Domini date to a few of its coins, the first city in the world to do so.

January–March

• January 13 – King Charles VI of France issues an ordinance to reform the kingdom's defense forces, with a goal of improving efficiency and discipline. For the first time, captains of regiments of soldiers are required to pay their men directly and report the accounting to their superiors, who are required to audit the reports. Previously, the captains pocketed the wages and allowed their men "to pay themselves by pillage."
• January 15 – Majorie Castle in Switzerland becomes the official residence of the Roman Catholic Prince-bishop of Sion, Guichard Tavelli, and the bishops that follow.
• February 16 – King Edward III of England appoints Lord Salisbury to command a fleet of English and Genoese galleys and 1,700 soldiers to fight in the Duchy of Brittany.
• March 7 – Second Ferdinand War: The Battle of Lisbon is fought off the coast of the capital of the Kingdom of Portugal. The attack by the Crown of Castile, by 12 galleys led by Ambrosio Boccanegra, disperses the 21 ships of the defending Portuguese navy (led by Lanzarote Pessanha, and leaves Lisbon open to capture and pillaging by the Castilian invaders.
• March 21 – The Battle of Chiset is fought between France and England near what is now Chizé in Deux-Sèvres département in France. The French force of 1,500 defenders, led by Bertrand du Guesclin overwhelms 700-man English force led by Baron Devereux, who is taken prisoner of war.
• March 24 – The Treaty of Santarém is signed between Ferdinand I of Portugal and Henry II of Castile, ending the second war between the two countries.
• March 31 – The Treaty of Villeneuve, signed on August 20, 1372 to settle the dispute between the Capetian House of Anjou and the House of Barcelona over rule of the Kingdom of Sicily, is ratified by Queen Giovanna of Naples (for Anjou), acknowledging the loss of Sicily to King Frederick the Simple of Sicily of the House of Barcelona.

April–June

• April 28 – Hundred Years' War: The French re-capture most of Brittany from the English, but are unable to take Brest, and John IV, Duke of Brittany, is forced into exile.
• May 6 – Byzantine co-emperor Andronikos IV Palaiologos allies with Savcı Bey, the son of the Ottoman Sultan Murad I, rebels against his father, John V Palaiologos, for agreeing to let Constantinople become a vassal of the Ottoman Empire, but the rebellion fails.
• May 7 – The troops of the Papal States and of the county of Savoy and the French mercenary Enguerrand VII de Coucy, defeat the Visconti, rulers of the Lordship of Milan in the Battle of Montichiari and stop Milan's attempts to expand its empire within Italy.
• May 13 – The English anchoress, Dame Julian of Norwich receives the 16 Revelations of Divine Love from God while seriously ill.
• May 17 – The dukes of the various duchies of Pomerania, enter into an alliance in a meeting at Kaseburg (now Karsibor in Poland) to resist the expansion of the neighboring state of Brandenburg.
• May 30 – Andronikos IV is arrested, imprisoned, and blinded in one eye on orders of his father, the Emperor John V Palaiologos, who was directed by Sultan Murad to carry out the punishment.Savci, who was completely blinded, is executed on orders of Murad, his father. After the rebellion fails, Ottoman Emperor Murad I commands to blind his son.
• June 12 – John of Gaunt's chevauchée of 1373: King Edward III appoints John of Gaunt, Duke of Lancaster as his captain-general in the war in France and sends him with a large army across the English Channel to Calais.
• June 16 – The Anglo-Portuguese Treaty is signed in London, and is the oldest active treaty in the world.

July–September

• July 1 – Marquard of Randeck, Prince-Bishop of Augsburg, who had joined an alliance in a war against the Republic of Venice, is defeated in the Battle of Fossa Nuova, near Treviso, after the Doge of Venice, Andrea Contarini, hired Turkish mercenaries. Randeck is forced to negotiate surrender terms and sign a peace treaty.
• August 4 – Hundred Years' War: John of Gaunt launches a new invasion of France, setting out with 15,000 men from Calais and marching through Picardy, Champagne and Burgundy, "burning and destroying as he advanced
• August 8 – Bristol perambulation: Bristol is made a county corporate, the first town in he Kingdom of England outside London to be granted this status.
• August 18 – The Treaty of Fürstenwalde is concluded between the Holy Roman Empire and the Margravate of Brandenburg, as the Margrave Otto V abdicates the throne and sells Brandenburg to the Holy Roman Emperor in return for several castles and towns in the Upper Palatinate 500,000 imperial guilders (1,900 kg or almost 68,000 ounces of gold) as Margrave of Brandenburg
• September 9 – Władysław the White (Władysław Biały), formerly the Duke of Gniewkowo begins a rebellion against the Kingdom of Poland in an attempt to become the kingdom's monarch rather than the King of Hungary. He begins an attempt to reestablish his duchy, capturing Gniewkowo, Włocławek, Inowrocław and Złotoria, but ultimately fails after he flees to Zlotoria in 1376 and is besieged there, surrendering in 1377.
• September 12 – , The German prince-bishop Marquard of Randeck signs a peace treaty with the Republic of Venice, forfeiting all territory recaptured during the war, with the exception of Feltre and Belluno.
• September 25 – At Constantinople, Manuel II Palaiologos is proclaimed as co-Emperor of Byzantium by his father, the Emperor John V Palaiologos.

October–December

• October 2 – Wenzel of Luxembourg, son of Charles IV, Holy Roman Emperor, is installed by the Empire as the new Margrave of Brandenburg, ending the war with Pomerania and entering into an alliance with the Pomeranian dukes.Buchholz (1999), p.161
• November 21 – King Edward III opens the English Parliament at Westminster and demands more money to be raised to continue the war with France.
• November 25 – Philip II, Prince of Taranto hands over the rule of Achaea (modern-day southern Greece) to his cousin, Joanna I of Naples.
• December 21 – The Parliament of England ends its session after 20 days and royal assent is given to measures passed therein, including an act setting "the length and breadth of cloth of ray, and cloth of colour", and setting the exchange rate for a Scottish groat as three English pence.

Date unknown

• Louis I of Hungary takes Severin again, but the Vlachs will recover it in 1376–1377.
• Constantine IV, ruler of the Armenian Kingdom of Cilicia (modern-day southern Turkey), is assassinated; he is succeeded by his distant cousin Leo V.
• A city wall is built around Lisbon, Portugal to resist invasion by Castile.
• Merton College Library is built in Oxford, England.
• The Adina Mosque is built in Bengal.
• The Chinese emperor of the Ming dynasty, the Hongwu Emperor, suspends the traditional civil service examination system after complaining that the 120 new jinshi degree-holders are too incompetent to hold office; he instead relies solely upon a system of recommendations, until the civil service exams are reinstated in 1384.

January–March

• January 17 –
  • In Italy, at Padua, Alvise Forzatè is arrested on charges of treason and conspiracy with his nephew Filippo Forzate, in 1373, to assassinate Francesco I da Carrara, Lord of Padua. The two men are beheaded one week later on January 24.
  • King Federico of Sicily swears his allegiance to Pope Gregory XI as part of the Treaty of Villeneuve after the Pope's recognition of him as the sovereign.
• February 3 –After invading Cyprus, the Republic of Genoa bombards the city of Kyrenia, but the Cypriots repel the invasion and force the Genoese to retreat to Nicosia.
• February 11 – In Germany, the Rhine river rises high enough in the Mosel River Valley during a flood that horses reportedly drown in the streets at Koln
• February 16 – Robert de Juilly becomes the new Grand Master of the Knights Hospitaller upon the death of Raymond Berengar.
• February – In what is now Hanoi in Vietnam, the Emperor Trần Duệ Tông of Đại Việt issues decrees establishing an imperial examination for civil servants.
• March 3 – Genoa makes a second assault on Kyrenia in Cypturs by land and sea and overcomes the defenders.
• March 20 – In a meeting at Dax in what is now the département of Landes, Gaston III of Foix, overlord in France of multiple territories in the Pyrenees as Count of Foix and Viscount of Béarn forms an alliance with England's John of Gaunt

April–June

• April 8 – Pope Gregory XI issues the papal bull Salvator humani generis, condemning 14 articles of the Sachsenspiegel, challenging canon law.
• April 12 – At Almazán, now part of Spain but at the time a town in the Kingdom of Castile and León, a peace agreement is executed by King Enrique II of Castile and King Pedro IV of Aragon, with the two monarchs agreeing to the wedding of Enrique's son and Pedro's daughter.
• April 15 – The Council of Narbonne is convened for the first time since 1261 by orders of Pope Gregory XI, and will publish 28 canons of Roman Catholic law.
• April 23 –
  • Casimir IV becomes the new Duke of Pomerania upon the death of his father Bogislaw V, while Bogislaw's nephew, Bogislaw VI becomes Prince of Rügen.
  • On Saint George's Day, in recognition of services, King Edward III of England grants the English writer Geoffrey Chaucer a gallon of wine a day, for the rest of his life.
• May 20 – Edward the Black Prince, eldest son and heir apparent to England's King Edward III, presides over a council of bishops and nobles at Westminster on Whitsunday to review a demand by Pope Gregory XI for a subsidy from England to help the Papal States in the war against the Republic of Florence. In his letter, the Pope asserts his right as Lord Spiritual and refers to himself as "Lord of all". The English nobles conclude, and the bishops agree, that the Kingdom of England will not be subject to the Pope's authority.
• June 24 – The illness dancing mania begins in Aix-la-Chapelle (Aachen), possibly due to ergotism.

July–September

• July 26 – Levon of Lusignan arrives at Sis, capital of the Armenian Kingdom of Cilicia and now a set of ruins near the town of Kozan, Adana in Turkey, to take the Cilician throne left vacant by the death of King Constantine IV. Marie of Korikos, Constantine's widow, has been ruling as the regent and supports Levon's the election by Cilician nobles.
• August 18 – King Lajos of Hungary pledges his infant daughter, Princess Hedwig, to marriage to Wilhelm of Habsburg, the four-year-old son of Leopold III, Duke of Austria, as part of an alliance between Austria and Hungary.
• August 27 – In France, after 14 years as territory of the Kingdom of England, the village of Martel, Lot is retaken by Bertrand du Guesclin, "The Eagle of Brittany".
• September 12 – King Jayasthiti Malla of Nepal leads soldiers into battle against the Kingdom of Patan and captures its capital, Bhadagon, as well as imprisoning and killing 53 of the Patan leaders.
• September 14 – Levon of Lusignan is formally crowned as King Leo V of Cilicia.
• September 17 – King Lajos of Hungary, in his role as King Ludwik of Poland, promulgates the Privilege of Koszyce, granting major concessions to the nobles of Poland in return for the nobles' pledge that they will recognize his daughter, Jadwiga, as the reigning monarch upon his death. The privileges granted are a release from paying a tribute to the King as a form of property tax, except for a token amount, limiting appointments to office to persons of Polish ethnicity, release from obligations to build and repair towns, bridges and castles, release from payment of the king's expenses, and a reimbursement by the King to the nobles to pay soldiers' wages.

October–December

• October 8 – Shaikh Hasan Jalayir became the ruler of the Jalayirid Sultanate, in what is now Iraq, as the eldest son of the late Shaykh Uways Jalayir, who had been Sultan since 1356, but would reign for only one day.
• October 9 – Hussain Jalayir was installed as the new ruler of the Jalayirid Sultanate after he and the other emirs arrested and executed Hussain's older brother, the Sultan Hasan, who had reigned for only one day.
• October 27 – King Gongmin of Goryeo is assassinated by several men who invade the royal palace at Songdo, enter the King's private chamber and hack him to death with swords. King Gongmin is succeeded by U of Goryeo as ruler of Goryeo (now part of South Korea).
• November 25 – James of Baux succeeds his uncle, Philip II, as Prince of Taranto (modern-day eastern Italy) and titular ruler of the Latin Empire (northern Greece and western Turkey).
• December 18 – Alexander Neville is installed in England as the new Roman Catholic Archbishop of York.

Date unknown

• Rao Biram Dev succeeds Rao Kanhadev as ruler of Marwar (the modern-day Jodhpur district of India).
• Shaikh Hasan Jalayir succeeds his father, Shaykh Uways Jalayir, as ruler of the Jalayirid Sultanate in modern-day Iraq and western Iran. Hasan proves to be an unpopular ruler and is executed on October 9 and succeeded by his brother, Shaikh Hussain Jalayir.
• Musa II succeeds his father, Mari Djata II, as Mansa of the Mali Empire (modern-day Mali and Senegal).
• Robert de Juilly succeeds Raymond Berenger as Grand Master of the Knights Hospitaller.
• Princes from the Kingdom of Granada choose Abu al-Abbas Ahmad to succeed Muhammad as-Said, as Sultan of the Marinid Empire in Morocco. The Empire is split into the Kingdom of Fez and the Kingdom of Marrakesh.
• A form of the Great Plague returns to Europe.
• The Château de Compiègne royal residence is built in France.

January–March

• January 30 – (28th day of 12th month of Bunchu 3) Emperor Go-En'yū is enthroned in Kyoto as Emperor of Northern Japan, after having succeeded his father, Emperor Go-Kōgon, in 1374.
• February 7 – In what is Myanmar, King Swa Saw Ke of Ava declares that occupiers from the neighboring Shan State of Möng Mao have been driven out of the kingdom, and a monument is inscribed at the capital, Inwa.
• February 13 – Pope Gregory XI issues the bull Debitum pastoralis offici, establishing a second ecclesiastical province in the Kingdom of Poland, the Roman Catholic Archdiocese of Halych.
• March 4 – Under an agreement between King Lajos of Hungary and Leopold III, Duke of Austria, Ludvik's one-year-old daughter, Princess Jadwiga, is betrothed to Leopold's four-year-old son Wilhelm of Habsburg.
• March 31 – In the Principality of Nizhny Novgorod-Suzdal (now part of Russia), the Grand Prince Dmitry of Suzdal oversees the massacre of the Tatar prisoners of war who had been captured during the Blue Horde's unsuccessful attempt by Sary-Aka to incite a rebellion against the principality's domination by Moscow.

April–June

• April 14 – The Mamluks from Egypt complete their conquest of the Armenian Kingdom of Cilicia. King Levon V is imprisoned for several years in Cairo, until a ransom is paid by King John I of Castile.
• April 21 – At Kalaburagi (now apart of the Indian state of Karnataka, Mujahid Shah succeeds his father, Mohammed Shah I, as ruler of the Bahmani Sultanate in the Deccan Plateau of southern India. A war begins two months later when the Sulatn Mujahid begins a fight against the neighboring Vijayanagara Empire
• May 1 – The third war between the Kingdom of Hungary and the Ottoman Empire as the 40,000 Hungarian troops, led by King Lajos of Hungary depart from Várad (now Oradea in Romania) and march into the Principality of Wallachia, whose ruler, Vladislav, has recently changed his alliance from Hungary to the Ottoman sultanate.
• May 4 – Simon Sudbury, the Catholic Bishop of London becomes the new Archbishop of Canterbury, leader of the Roman Catholic Church in the Kingdom of England, upon his appointment by Pope Gregory XI following the death almost a year earlier of the Archbishop William Whittlesey. Sudbury will preside for six years until his assassination in 1381.
• June 18 – In Spain, the eldest son of Henry II of Castile, Prince Juan of Trastámara marries the daughter of King Pedro of Aragon, Princess Leonor of Aragon as part of a peace agreement between the Kingdom of Castile and the Kingdom of Aragon. The marriage takes place at Soria, a town on the Douro river, the border between the two kingdoms. Juan will become King of Aragon in 1379 and Leonor the Queen consort.
• June 26 – Shortly after an earthquake in Japan, the Southern Court, ruled by Emperor Chōkei, changes the name of the Bunchū era, and the Tenju era begins.
• June 27 – Hundred Years' War: The English, weakened by the plague, lose so much ground to the French that they agree to sign the Treaty of Bruges, leaving them with only the coastal towns of Calais, Bordeaux and Bayonne.

July–September

• July 3 – The fortress of St. Sauveur le Viconte surrenders to a French fleet commanded by Jean de Vienne after a siege of more than six months.
• July 15 – During a plague in England, Simon Sudbury, Archbishop of Canterbury, sends a call for prayers to all churches, asking that believers "pour out unceasing prayers to The Most High for the cessation of this pestilence or epidemic and for the tranquility of peace, and to entreat mercy of Him with a humble heart," and adds "For prayer is an immediate defence, an immolation of the enemy, a solace to angels and a pleasing sacrifice to God, and assiduous appeals for mercy made by a just man very often carry great power."
• July 24 – Despite an appeal by Pope Gregory XI to cities in Tuscany to remain allied to the Catholic Church in a war with the Republic of Florence, the city of Pisa enters a defensive alliance with the Visconti family of Florence and supplies are sent by Florence for lance-bearing soldiers, as well as archers and infantry as part of a federation of Tuscan communes.
• August 8 – In Switzerland, the Roman Catholic bishop Guichard Tavel becomes a victim of the long-standing feud between the Tavel family and the de la Tour family. Antoine de la Tour and a group of soldiers enter the Soie Castle (now in the Canton of Valais), ostensibly to arrest Bishop Tavel. The la Tour gang drags the Bishop up to the top of the castle walls and throws him off to his death.
• September 4 – In the Duchy of Aquitaine, now part of France but at the time ruled by the King of England, the civic leaders of the town of Soule sign an agreement with Gaston III of Foix, popularly known as "Fébus", for his protection against raids from John of Gaunt.

October–December

• October 24 – Margaret I of Denmark becomes Regent of Denmark after the death of her father, Valdemar IV.
• November 12 – At Brno, now in the Czech Republic, Jobst of Luxembourg (Jošt Lucemburský) becomes the new margrave of Moravia, succeeding his father Jan Jindřich Lucemburský.
• December 2 – With the threat of the Russian Orthodox believers of the Grand Duchy of Lithuania being converted to the Roman Catholic Church, the Ecumenical Patriarch of Constantinople, Philotheos Kokkinos, creates the Orthodox metropolis of Lithuania with the approval of the other bishops at the Council of Constantinople. Philotheos consecrates Cyprian as the first Orthodox Metropolitan of Lithuania and designates Cyprian will be the successor to Alexius II, Metropolitan of Kiev and all Russia.
• December 20 – Pope Gregory XI designates nine new cardinals at Avignon, having appointed 21 new cardinals to supplement the 20 who had been living when he became Pope. Among those selected are Pedro Martínez de Luna y Pérez de Gotor, who becomes the second antipope at Avignon during the Western Schism between Avignon and Rome.
• December 25 – Queen Joanna of Naples signs a marriage contract for the fourth time, agreeing to be married to Otto, Duke of Brunswick-Grubenhagen. Queen Joanna's first three husbands (Andrew of Calabria, King Louis I of Naples and the Margrave James IV of Majorca) had all died, in 1345, 1362 and 1375, respectively.
• December 28 – King Edward III summons the English Parliament to assemble at Westminster on April 28, 1376.

Date unknown

• The Grand Duchy of Moscow and Tver sign a truce. Tver agrees to help Moscow fight the Blue Horde.
• Presumed death of Tenoch, ruler of the Mexica; he is succeeded by Acamapichtli who becomes first tlatoani (ruler) of the Aztecs of Tenochtitlan and founder of the Aztec imperial dynasty.
• Petru succeeds as Voivode (ruler) of Moldavia (modern-day Moldova & eastern Romania). He is the first ruler from the dynastic House of Bogdan.
• Coluccio Salutati is appointed Chancellor of Florence.
• The Russian town of Kostroma is destroyed by the ushkuynik pirates from Novgorod.
• Heirin-ji Temple is founded near Tokyo.
• In Nanjing, capital of Ming dynasty China, a bureau secretary of the Ministry of Justice, Ru Taisu, sends a 17,000 character-long memorial to the throne, to be read aloud to the Hongwu Emperor. By the 16,370th character, the emperor has been offended by several passages, and has Ru Taisu summoned to court and flogged for the perceived insult. The next day, having had the remaining characters read to him, he likes four of Ru's recommendations, and instates these in reforms. Ru is nevertheless castigated for having forced the emperor to hear thousands of characters before getting to the part with true substance. The last 500 characters are elevated in court as the model-type memorial that all officials should aspire to create while writing their own.
• Approximate date – Battle of Gardiki: The Principality of Achaea defeats the Despotate of the Morea.

January–March

• January 23 – In the Holy Roman Empire, Wenceslaus I, Duke of Saxe-Wittenberg and Elector of Saxony, marries Cecilia da Carrara, daughter of Francesco I da Carrara, Lord of Padua.
• January – In what is now Myanmar Ma Sein of Toungoo, the Viceroy of Taungoo who had been appointed by the King of Binnya U of Hanthawaddy to replace the assassinated Viceroy Pyanchi, is murdered near Pyay while trying to forment a rebellion against the Kingdom of Ava.
• February 12 – English mercenary John Hawkwood, condottiero for Pope Gregory XI in the War of the Eight Saints against the Republic of Florence, arrives at Faenza to suppress a potential revolt against the papal governor. He and his soldiers, who were not paid by the Pope, go on to loot the town instead of protecting it.
• February 19 – Jan III becomes the new Duke of Oświęcim in Poland upon the death of his father, Jan II of Oświęcim.
• February 26 – The Böse Fasnacht, a riot in the Swiss city of Basel, breaks out during a tournament at a carnival and numerous people are killed, including several of the soldiers of the Duke of Austria, Leopold III. The city council arrests and executes 12 perpetrators, but Duke Leopold proceeds with placing the city under stricter control.
• March 12 – The Treaty of Bruges, signed on June 27, 1375 between England and France to end hostilities in the Hundred Years' War for a year, is extended by agreement to June 24, 1377.
• March 31 – Pope Gregory XI excommunicates all members of the government of the Republic of Florence, and places the city under an interdict.

April–June

• April 28 – The Good Parliament, so called because its members attempt to reform the corrupt Royal Council, begins in England .
• May 3 – Olav IV Haakonsson is elected King Oluf II of Denmark, following the death of his grandfather, Valdemar IV, in 1375.
• June 7 – The day before his death, Prince Edward of Wales, heir to the English throne and known as "The Black Prince" summons his father, King Edward III, and brother, John of Gaunt, and makes them swear to uphold the claim to the throne of his son Richard. Edward is the first "English" Prince of Wales (as opposed to Welsh) not to become King of England.
• June 10 – Wenceslaus the Idle, son of Charles IV, Holy Roman Emperor, is elected King of the Romans by the prince-electors.
• June 18 – Saint Catherine of Siena, now the Roman Catholic patron saint of Italy, visits Pope Gregory XI in Avignon in France, to attempt to persuade him to make peace with Florence, and move the Papacy back to Rome.

July–September

• July 6 –
  • The Swiss city of Basel is placed under an imperial ban by the Habsburg dynasty's Leopold III, Duke of Austria because of the February 26 riot.
  • Wenceslaus the Idle is crowned King of the Romans at a ceremony in the Aachen Cathedral.
• July 10 – The Good Parliament is dissolved (at this time, it is the longest Parliament to have sat in England).
• August 12 – With the help of the Genoese, Byzantine co-emperor Andronicus IV Palaeologus invades Constantinople and dethrones his father, John V Palaeologus, as co-emperor. John V Palaeologus is taken prisoner.
• September 13 – Pope Gregory XI departs from Avignon in France to begin his journey to Rome in an attempt to make peace between the Republic of Florence and the Papal States.
• September – John of Gaunt summons religious reformer John Wyclif to appear before the Royal Council.

October–December

• October 7 – King Edward III of England makes out his Last Will and Testament, formally declaring his grandson Prince Richard as his successor, describing him as "Next we give and leave to our future heir, on whom may God confer his saving Grace, Richard, namely the son of Edward of honoured memory lately prince of Wales our firstborn son".
• October 12 – Pope Gregory XI and several cardinals of the Roman Catholic Church depart on a ship from the port of Marseille in France, and encounter severe storms before arriving in Genoa. He will finally arrive in Rome on January 17, 1377.
• October 28 – Pope Gregory XI and his cardinals sail out of the Bay of Genoa toward Corneto. Several cardinals become seriously ill, including Cardinal de Narbonne, who disembarks at Pisa and dies there.
• November 20 – Richard of Bordeaux, son of the Black Prince, is created Prince of Wales in succession to his father.
• December 25 – John of Gaunt presents his nephew, Richard of Bordeaux, to the feudatories of the realm and swears to uphold Richard's right to succeed Edward III.

January–March

• January 17 – Pope Gregory XI moves the papacy back from Avignon to Rome.
• January 27 – The "Bad Parliament", the 48th and last to be convened during the reign of King Edward III of England, begins its session with the goal of repealing most of the acts of the 1376 Parliament. Influenced by John of Gaunt, 1st Duke of Lancaster and son of King Edward, it undoes the work done by the Good Parliament, the previous year, to reduce corruption in the Royal Council. For the first time, the leader of the members of the House of Commons has a title, as Sir Thomas Hungerford, Gaunt's steward, is selected as the first "Speaker of the House of Commons".
• January – On the 24th day of the first lunar month of the year Dinh Ty, Tran Due Tong, Emperor of Đại Việt (Vietnam), is killed in the Battle of Đồ Bàn.
• February 3 – The Pope's representative in northern Italy, Robert de Geneve (the future antipope Clement VII), and mercenaries commanded by English soldier of fortune John Hawkwood, complete the three-day pillaging of Cesena in the Papal States, and 4,000 antipapal rebels are massacred.
• February 24 – In southern India, Harihara II succeeds Bukka Raya I, as ruler of the Vijayanagara Empire at its capital, Vijayanagara (now Hampi in Karnataka state).
• March 2 – The Bad Parliament dissolves and King Edward III gives royal assent to measures that roll back the 1376 legislation that he had been forced to agree to. He also approves the Bad Parliament's passage of a poll tax of four pennies for every male voter at least 14 years old, an attempt by the House of Commons to expand voting to the lower economic classes in return for expanding the tax burden from property owners to include those citizens who did not own property.
• March 13 – At Thang Long, capital of Dai Viet (now Hanoi, capital of the Republic of Vietnam), Tran Phe De succeeds his late father, Tran Due Tong as the Emperor of Dai Viet. However, the real power remains with Nghe Tong, the regent for Phe De.
• March 15 – Al-Ashraf Sha'ban, the Sultan of Egypt since 1363, is assassinated in Cairo and his 9-year-old son, Al-Mansur Ali II is installed as the new Sultan by the rebel leader Emir Aynabak al-Yalbughawi, who serves as the sultanate's actual leader.
• March 21 – John Minsterworth, who had plotted a French invasion of the Kingdom of England in conjunction with France's King Charles V, is arrested in Pamplona, and letters to him regarding the proposed invasion are discovered. Minsterworth is taken first to Bordeaux in France and then returned for imprisonment in the Tower of London, where he reveals plans for a May 1378 invasion by the French Navy. Convicted of treason, he is executed on April 12 and his body is drawn and quartered.

April–June

• April 23 – King Edward III of England formally confers knighthood upon two of his grandsons, both aged 10, Prince Richard of Woodstock (son of King Edward's deceased son Edward the Black Prince), and upon Henry Bolingbroke (son of John of Gaunt), as well as his 13-year-old illegitimate son John de Southeray, and 11-year-old John de Mowbray. Two months later, Prince Richard will become King Richard II upon Edward's death, and in 1399, Bolingbroke will overthrow Richard and becomes King Henry IV.
• May 22 – Pope Gregory XI issues five papal bulls condemning the opinion of John Wycliffe, who has argued that Catholic priests should live in poverty, like the twelve disciples of Jesus.
• May 24 – Władysław II Jagiełło succeeds his father, Algirdas, as Grand Duke of Lithuania. Jagiello initially shares power with his uncle, Kestutis Giedyminowicz, until 1381.
• June 21 – After a reign of more than 50 years, King Edward III of England dies at Sheen Palace in Richmond at the age of 64. His 10-year-old grandson, Prince Richard of Woodstock, succeeds to the throne as King Richard II. Richard is the son of King Edward's oldest son, Edward the Black Prince, who had died a year earlier.
• June 24 – The Caroline War, which had been fought for six years from 1369 until the Treaty of Bruges on June 27, 1375, resumes between the kingdoms of England and France as the treaty expires. The war, a dispute over the control of Aquitaine, will last until 1389.

July–September

• July 16 – Richard II, the 10-year-old grandson of Edward III, is crowned king of England at Westminster Abbey. A minority government is established, and a series of continual councils rule on his behalf until 1381.
• July 27 – Frederick the Simple, who has reigned as King Federico III of Sicily since 1355, dies in Messina at the age of 35 and is succeeded by his 14-year-old daughter, Maria of Aragon, who becomes the Queen of Sicily. The kingdom is administered by a regency of four "vicars", led by Artale I d'Alagona.
• August 2 – In the Battle on Pyana River, part of the Golden Horde Dynastic War, an alliance of five Russian principalities is defeated by the Mongol Blue Horde (a part of the Golden Horde), led by Arapsha Khan. According to a later Russian account, Chronicle On The Slaughter at Pyana River, the Russian troops had been drinking mead and beer while waiting at the river for the Golden Horde attack and are intoxicated when Arapsha's troops attacked from five directions. The Russian commander, Prince Ivan Dmitriyevich of Nizhny Novgorod and staff attempt to retreat across the Pyana River and drown, and the river itself, Arapsha Khan and his troops then take over Nizhny-Novgorod with no opposition. The name of the river itself derives from the Russian language word for "drunk", пьяный (pyanyy).
• August 4 – The members of England's House of Commons and House of Lords are directed, in the name of the new King Richard II, to assemble at Westminster on October 13.
• August 21 – Pope Gregory XI agrees to acknowledge the right of existence of the Bolognese Republic as autonomous within, and separate from, the other Papal States.
• August – The Hongwu Emperor of the Ming dynasty of China scraps the Office of Reports Inspection (established in 1370) for a new Office of Transmission, in his efforts to create a more efficient communicatory system in the empire. A month before this he noted that anyone could send memorials to the throne; commoners often did, although the only times their petitions were read aloud to the emperor were when they called for the impeachment of local officials who were not up to par with their official duties.Wilkinson, 534–535.
• September 24 – The Spanish Aragonese knight Juan Fernández de Heredia becomes the new Grand Master of the Knights Hospitaller, who control the island of Rhodes, one of the Dodecanese islands of Greece and the island of Cyprus. Fernandez is elected by his fellow Knights to replace the late Grand Master Robert de Juilly, who had died on July 29.

October–December

• October 13 – Richard II of England's first parliament assembles for a session of almost two months. The House of Commons members elect Peter de la Mare as the Speaker of the House.
• October 26 – Stefan Tvrtko is crowned as the first King of Bosnia at a monastery in Mileševa on the feast day of Saint Demetrius.
• November 16 – The village of Westkerke in the Netherlands, on the island of Wolphaartsdijk is entirely washed away by a flood. Three centuries later, the Dutch will reclaim the land from sea by the building of dikes, Wolphaartsdijk will no longer be an island and the area where Westkerke had existed will be resettled. The remains of the lost village will be found in 1975, almost six centuries after its destruction.
• November 30 – The Battle of Fornarina is fought in Italy when the independent village of San Ginesio (now in Italy's Macerata province) is invaded by mercenaries from the larger city of Fermo from a neighboring province. As the mercenaires cross through an unguarded and open gate, a baker in the middle of baking bread hears the troops approach, throws hot ashes into the first line of soldiers, and alerts the Ginosan troops who drive the invaders up a hill and over the side of a steep cliff.
• December 5 – The English Parliament adjourns and laws passed therein are given royal assent by Queen Joan of Kent, regent for King Richard II. Among the laws enactted are the Purveyance Act ("Prelants shall have their action of trespass against purveyors offending"), the Arrest of Clergy Act (setting "the penalty for arresting of priests during divine service.") and the Villanies Act ("Commissions shall be awarded to enquire of and punish the misbehaviour of villains and land-tenants to their lords").

Date unknown

• A rebellion against the Majapahit Empire is quashed in Sumatra in what is now Indonesia.
• Informed that Khan Urus of the White Horde has died, Timur of the Timurid Empire sends Tokhtamysh to take the Horde throne, but is defeated by Urus' son, Timur Malik.
• Radu I succeeds Vladislav I as Prince of Wallachia in what is now southern Romania.
• King U of Goryeo adopts the Ming calendar and begs to be invested by the Hongwu Emperor.
• The Trezzo sull'Adda Bridge is completed in Lombardy, and becomes the longest single-arch bridge in the world to be built for four centuries.
• A sermon by a German monk states "the game of cards has come to us this year", and prohibitions against cards are issued by Prince John of Castile, and the cities of Florence and Basel.

January–March

January 6: The Banquet of the Three Kings is hosted in Paris.

• January 6 – At the Great Hall of the Conciergerie in Paris, King Charles V of France hosts the Banquet of the Three Kings with his uncle, Charles IV, Holy Roman Emperor and the Emperor's son, Wenzel the Idle, King of the Romans as his guests (along with 800 German and French knights), to celebrate the friendship between the nations. The banquet, held on the day of the Feast of the Epiphany, has three courses, with 10 dishes in each course.
• January 13 – Balša II succeeds his brother, Durađ I, as ruler of Lower Zeta in what is now Montenegro.
• January 14 – King Richard II opens the Irish Parliament for the first time since the death of his father, King Edward III, a year earlier.
• February 6 – King Charles V of France is widowed when his queen consort, Joanna dies at age 40, two days after giving birth to their last child, Catherine. Against medical advice, Queen Joanna had taken a hot bath in order to induce labor.
• February 12 – Alexius, Metropolitan of Kiev and spiritual leader of the Russian Orthodox Church since 1354, dies of old age and his designated successor, Cyprian, Metropolitan of Lithuania, attempts to become the new leader. However, Grand Prince Dmitry Donskoy of Moscow denies Cyprian permission and appoints Pimen as successor to Alexius.
• February 19 – In England, John Wycliffe, who has been trying to promote ideas for Catholic reform and has published a tract outlining his theses, appears at the Church of St. Paul before a group of bishops headed by the Archbishop of Canterbury, Simon of Sudbury, to defend his actions. With a citation having directed him to appear "on the thirtieth court-day" after receipt, Wycliffe arrives before the bishops to proceed with trial, but proceedings are halted when Sir Lewis Clifford, dispatched by Joan of Kent, Princess of Wales, acting as the regent for her son, King Richard II the Kingdom, directs that the bishops are "not to presume to determine anything against John Wycliffe. According to a chronicler, "Struck with terror, they at once abandoned the business of their meeting," but they subsequently order Wycliffe to appear at Lambeth in March.
• March 27 – Pope Gregory XI dies at the Vatican in Rome after a little more than seven years as leader of the Roman Catholic Church, and shortly after moving the church leadership back to Rome from the French city of Avignon. Officials of Rome begin a campaign of intimidation to prevent the Roman Catholic cardinals, a majority of whom are French, from electing a French cardinal as Gregory's successor.

April–June

• April 9 – Following the death of Pope Gregory XI, and riots in Rome calling for a Roman pope, the cardinals, who are mostly French, meet in a papal conclave and elect an Italian from Naples, Bartolomeo Prignano, Archbishop of Bari, as the 202nd Pope. Prignano takes the regnal name Pope Urban VI, and is the last Pope of the Roman Catholic Church to have been elected from outside of the College of Cardinals. The French cardinals then flee from Rome before the populace learns that a non-Roman was picked, and return to Avignon, beginning the Western Schism, a 39-year period where rival popes are selected at Avignon and Rome.
• April 16 – Mujahid Shah, ruler of the Bahmani Sultanate in what is now the Karnataka state in southern India, is assassinated by his uncle, Da'ud Shah, while traveling between Adoni and Kulbarga. Da'ud and three accomplices enter Mujahid's tent and stab him to death, after which Da'ud declares himself to be the new Sultan of Bahmani.
• April 18 – The coronation of Pope Urban VI takes place in Rome on Easter Sunday.
• May 21 – After only five weeks as Sultan of Bahmani in India, Da'ud Shah is assassinated while praying in the grand mosque at the capital, Kalaburagi. Da'ud Shah is succeeded by one of his nephews, Mahmud Shah.
• May 26 – Uskhal Khan Tögüs Temür succeeds his father, Biligtü Khan Ayushiridara, as ruler of the Northern Yuan dynasty in Mongolia.
• May 30 – The War of Chioggia begins on the Italian peninsula between the navies of the Republic of Venice and the Republic of Genoa, with a surprise attack on 11 Genoese galleys at Capo d'Anzio by a 10-galley fleet led by Venetian Admiral Vettor Pisani. Venice captures five of the Genoese ships and takes their crews as prisoners of war, including the Genoese admiral, Luigi de' Fieschi.
• June 17 – In the wake of the recent defeat of the Genoese Navy at the battle of Capo d'Anzio, Domenico di Campofregoso, Doge of the Republic of Genoa, is removed from office by the Genoese Senate and replaced by Nicolò Guarco.

July–September

• July 21 – The Ciompi Revolt becomes violent in the Republic of Florence as a group of 64 discontented wool carders, led by Salvestro de' Medici, briefly take over the government of Florence and place Michele di Lando in the executive office.
• August 4 – Gian Galeazzo Visconti succeeds his father, Galeazzo II Visconti, as ruler of Milan.
• August 11 – Battle of the Vozha River: Prince Dmitri Ivanovich of Moscow resists a small invasion by the Mongol Blue Horde under Mamai.
• September 3 – As regent for the 11-year-old King Richard II of England, his mother Joan of Kent summons the English Parliament, directing the members of the House of Commons and the House of Lords to assemble at Gloucester on October 20.
• September 20 – Unhappy with Pope Urban's critical attitude towards them, the majority of the cardinals meet at Fondi, elect Clement VII as antipope, and establish a rival papal court at Avignon. This split within the Catholic Church becomes known as the Western Schism, also known as the Great Schism. France, Aragon, Castile and León, Cyprus, Burgundy, Savoy, Naples and Scotland choose to recognise Antipope Clement VII. Denmark, England, Flanders, the Holy Roman Empire, Hungary, northern Italy, Ireland, Norway, Poland and Sweden continue to recognise Pope Urban VI.

October–December

• October 22 – Sir James Pickering is elected as Speaker of the English House of Commons.
• October 31 – The coronation of Count Onorato Caetani as the antipope Clement VII takes place in Italy at Fondi at the cathedral of San Pietro adjacent to the Caetani palace. Clement operates as a rival leader of the Roman Catholic Church for about a year before he and his cardinals relocate to Avignon.
• November 10 – The first observation of Halley's Comet from Earth is made, based on an estimate from orbital calculations.
• November 16 – The English Parliament concludes its session after four weeks, and royal assent is given to new laws passed during the session, including the Scandalum Magnatum Act 1378, prescribing penalties for "telling slanderous lies of the great men of the realm", the Pope Urban VI Act 1378 (declaring that Urban "was duly chosen pope, and so ought to be accepted and obeyed," and the Riots Act 1378 granting authority to award commissions to persons to arrest rioters }and other persons offensive to the peace."
• November 29 – Charles IV, Holy Roman Emperor, dies in Prague. He is succeeded by his son, Wenceslaus, as King of Bohemia, but the office of Holy Roman Emperor falls into abeyance, until Charles's son Sigismund is crowned in 1433.
• December 16 – The antipope Clement VII declares nine clerics to be added as cardinals of the Roman Catholic Church, joining those already allied with him as part of the Avignon Obedience against the cardinals of Pope Urban VI. Among the new "pseudo-cardinals", assigned to secure allegiance to the Antipope Clement from other European nations are Niccolò Brancaccio, Nicolas de Saint-Saturnin, Pierre Raimundi de Barrière Mirepoix, and Giacomo d'Itri.

Date unknown

• The Raseborg Castle is mentioned for the first time in documents, but its actual date of foundation is unknown.
• Tokhtamysh dethrones Temur-Malik to become Khan of the White Horde.
• Uthman Beg establishes the Aq Qoyunlu (Turkomans of the White Sheep) dynasty at Diyarbakır, in modern-day southeast Turkey.
• Ottoman Turks capture the town of Ihtiman in west Bulgaria.
• Tai Bian succeeds Zhao Bing Fa as King of Mong Mao (modern-day northern Myanmar).
• Sa'im al-Dahr is hanged for blowing the nose off the Great Sphinx of Giza.

January–March

• January 23 – Maria, Queen of Sicily since 1377, is kidnapped from her home at the Ursino Castle in Catania by Guglielmo Raimondo III of the rival House of Moncada claimants to the throne held by the House of Aragon. The action takes place with the support of King Pero IV of Aragon, who installs his son Martin of Aragon as the Viceroy of Sicily.
• February 16 – King Richard II of England issues an order directing the English Parliament to assemble on April 24 in London.
• February 18 – Heinrich III is installed as the new Duke of Mecklenburg at Schwerin (now part of Germany) upon the death of his father, Albrecht II.
• February 28 – In what is now part of Kazakhstan and Russia, Tulak Khan of Borjigin is confirmed by the Beylerbey Mamai of the Golden Horde, with the approval of the ruler Tokhtamysh, after Mamai arranges the assassination of Tulak's cousin, the former khan.
• March 24 – The First War of the Guelderian Succession ends after eight years of fighting in what is now the German state of North Rhine-Westphalia, between Wilhelm of Jülich and the Duchess Mechteld of Guelders. Duchess Mechteld, wife of John II, Count of Blois, who renounces all claims to further rule after a defeat at the Battle of Hönnepel. In return for her surrender of claims to Guelders, she receives an annual pension of 33,000 gold pieces.
• March 31 – The Treaty of Briones is signed between King Carlos of Navarre and King Enrique of Castile, ending a war that started the previous year. The Kingdom of Navarre ends its alliance with the Kingdom of England, whose troops it had allowed passage during the Hundred Years War.

April–June

• April 9 – (22nd day of third month of Eiwa 5) The Kōryaku era begins in the Northern Court of Japan at Kyoto on decree of the northern Emperor Go-En'yū because of a disastrous time of plague and war.
• April 24 – The English Parliament opens for a five-week session under the direction of King Richard II.
• May 7 – The Battle of Pola is fought in the Adriatic Sea between the navies of the Republic of Genoa and the Republic of Venice. The Venetian fleet, commanded by Admiral Vettor Pisani loses 19 of its 25 galleys in the battle, but Genoese Admiral Luciano Doria is killed in the battle. One of Doria's lieutenants conceals the admiral's death from the rest of the sailors by donning the admiral's clothes. Admiral Pisani is put in prison upon his return to Venice, but later released when Genoa invades in the Battle of Chioggia.
• May 27 – The English Parliament closes after a short session, and King Richard II issues royal assent to legislation passed, including the Riots Act 1379, a prohibition against "fraudulent deeds made by debtors to avoid their creditors", and a confirmation of liberties of the Church.
• May 29 – John I succeeds his father, Henry II, as King of Castile and King of León.
• June 30 – New College, Oxford, is founded in England by William of Wykeham, Bishop of Winchester.

July–September

• July 1 – Forces of the Republic of Venice and Ottoman Turks, having invaded Constantinople, restore John V Palaiologos as Byzantine co-emperor. Andronikos IV Palaiologos is allowed to remain as co-emperor, but is confined to the city of Silivri for the remainder of his life.
• August 16 – The Republic of Genoa, led by the Doge Nicolò Guarco and its allies from Hungary and Padua, captures Venice's port of Chioggia and seize the Venetian Army garrison there and soon threaten to take Venice and the Venetian Republic. An attempt by the Venetian Senate to apply for peace is rejected as Genoa demands a full surrender, and the Venetians resolve to fight, releasing Admiral Pisani from prison.
• September 9 – The Treaty of Neuberg is signed, splitting the Austrian Habsburg lands between brothers Albert III and Leopold III. Albert III retains the title of Duke of Austria.
• September 14 – Andrea Contarini, Doge of Venice, announces to the besieged Venetians that the Republic will fight Genoa rather than surrender their nation.

October–December

• October 20 – King Richard II issues a summons directing the English Parliament to assemble on January 16.
• November 28 – From Avignon in France, the antipope Clement VII issues his own a papal bull confirming the foundation of the University of Perpignan.
• December 22 – Andrea Contarini, the Doge of the Republic of Venice, directs Admiral Pisani to blockade the port of Genoa, effectively trapping the Genoese fleet and preventing the occupation of Venice.

Date unknown

• Bairam Khawaja establishes the independent principality of the Kara Koyunlu (Turkomans of the Black Sheep Empire), in modern-day Armenia.
• Dmitry Donskoy of Moscow raids Estonia.
• In the Hundred Years' War, the French lose control of most of Brittany to the English.
• Wisbech Grammar School is founded in England.
• Timur conquers the Sufid Dynasty of Khwarazm.

Births

1370

• April 11 – Frederick I, Elector of Saxony (d. 1428)
• July 23 – Pier Paolo Vergerio the Elder, Italian humanist (d. 1444 or 1445)
• date unknown
  • Erasmo of Narni, Italian mercenary (d. 1443)
  • Guarino da Verona, Italian humanist (d. 1460)
  • John VII Palaiologos, Byzantine Emperor (d. 1408)
  • King Olav IV of Norway (d. 1387)
  • Jan Piast, Duke of Ziebice (d. 1428)
  • Jan Sindel, Polish scientist (d. 1443)
• probable
  • Joan of Navarre, Queen of England, Duchess regent of Brittany (d. 1437)
  • John Lydgate, English Benedictine monk and poet (d. 1451)
  • Paulus Vladimiri, Polish scholar (d. 1435)
  • Duke William of Austria (d. 1406)

1371

• May 28 – John the Fearless, Duke of Burgundy (d. 1419)
• September 21 – Frederick I, Elector of Brandenburg (d. 1440)
• December 30 – Prince Vasily I of Moscow (d. 1425)
• date unknown
  • Leopold IV, Duke of Austria (d. 1411)
  • Sophia of Lithuania, regent of Lithuania (d. 1453)
  • Zheng He, Chinese mariner and explorer (d. 1433)
• probable – Isabeau de Bavière, queen of Charles VI of France (d. 1435)

1372

• February 18 – Ibn Hajar al-Asqalani, Islamic scholar (d. 1449)
• March 13 – Louis I, Duke of Orléans, son of King Charles V of France (d. 1407)
• September 8 – Thomas Holland, 1st Duke of Surrey (d. 1400)
• October – John Hastings, 3rd Earl of Pembroke (d. 1389)
• approximate date
  • Helena Dragaš, empress consort of Byzantium (d. 1450)
  • Olivera, daughter of Lazar of Serbia and wife of Bayezid I

1373

• March 29 – Marie d'Alençon, French princess (d. 1417)
• June 25 – Queen Joanna II of Naples (d. 1435)
• September 22 – Thomas le Despenser, 1st Earl of Gloucester (d. 1400)
• date unknown
  • Edward of Norwich, 2nd Duke of York (d. 1415)
  • Margery Kempe, writer of the first autobiography in English

1374

• April 11 – Roger Mortimer, 4th Earl of March, heir to the throne of England (d. 1398)
• November 26 – Yury Dmitrievich, Russian grand prince (d. 1434)
• probable
  • Queen Jadwiga of Poland
  • King Martin I of Sicily (d. 1409)

1375

• October – Joanna of Aragon, Countess of Foix, Aragonese throne claimant (d. 1407)
• date unknown
  • Richard of Conisburgh, 3rd Earl of Cambridge (approximate date; d. 1415)
  • Nicolas Grenon, French composer (approximate date; d. 1456)
  • Lan Kham Deng, King of Lan Xang 1416–1428 (d. 1428)
  • Johannes Abezier (1375–1424), Roman Catholic religious and political leader of the Teutonic Knights, over Polish territory

1376

• November 9 – Edmund Mortimer, English nobleman and rebel (d. c. 1409)
• date unknown
  • Gihwa, scholar in Korean Buddhism (d. 1433)
  • Sofia of Bavaria, queen consort of Bohemia (d. 1425)
  • Yusuf III, Sultan of Granada (d. 1417)

1377

• February 15 – King Ladislaus of Naples (d. 1414)
• August 1 – Emperor Go-Komatsu of Japan (d. 1433)
• August 20 – Shahrukh Mirza, ruler of Persia and Transoxiania (d. 1447)
• September 19 – Albert IV, Duke of Austria (d. 1404)
• December 5 – Jianwen Emperor of China (d. 1402)
• date unknown
  • Louis II of Anjou (d. 1417)
  • Filippo Brunelleschi, Italian architect (d. 1446)
  • Anglesia Visconti, queen consort of Cyprus (d. 1439)
  • Ernest, Duke of Austria (d. 1424)
  • Oswald von Wolkenstein, Austrian poet (d. 1445)
  • Stefan Lazarević, Despot of Serbia (d. 1427)
  • Đurađ Branković, Despot of Serbia (d. 1456)
  • Guru Ravidas, (d. 1528)

1378

• January 23 – Louis III, Elector Palatine (d. 1436)
• May 27 – Zhu Quan, Chinese military commander, historian and playwright (d. 1448)
• August 16 – Hongxi Emperor of China (d. 1425)
• October 24 – David Stewart, Duke of Rothesay, heir to throne of Scotland (d. 1402)
• December 31 – Pope Callixtus III (d. 1458)
• date unknown
  • Vittorino da Feltre, Italian humanist (d. 1446)
  • Joan II, Countess of Auvergne, French vassal (d. 1424)
  • Lorenzo Ghiberti, Italian sculptor and metal-worker (d. 1455)
  • John Hardyng, English chronicler (d. 1465)
  • Narasimha Saraswati - Indian Guru and Saint

1379

• October 4 – King Henry III of Castile (d. 1406)
• date unknown
  • Jerome of Prague, Hussite (d. 1416)
  • Empress Zhang (Hongxi) of China (d. 1442)

Deaths

1370

• May 31 – St. Vitalis of Assisi, Italian hermit (b. 1295)
• c. September 20 – Edward of Angoulême, French-born royal prince of England (b. 1365)
• November 5 – Casimir III the Great, King of Poland (b. 1310)
• December 19 – Pope Urban V (b. 1310)
• date unknown
  • Simeon Uroš, Emperor of Serbs and Greeks and half-brother of Stefan Dušan (b. 1326)
  • Vedanta Desika, Indian Hindu guru and poet (b. 1269)
  • Yang Weizhen, Chinese painter (b. c. 1296)
  • Toghon Temür, Emperor Huizong of Yuan dynasty China (b. 1320)
• probable date – Empress Gi of Yuan dynasty China (b. 1315)

1371

• January/February – Paul, Latin Patriarch of Constantinople
• February 17 – Ivan Alexander of Bulgaria
• February 22 – David II of Scotland (b. 1324)
• March 4 – Jeanne d'Évreux, queen consort of France (b. 1310)
• September – Thomas de Vere, 8th Earl of Oxford (b. c. 1336)
• September 26 – Jovan Uglješa, Serbian despot
• September 26 – Vukašin Mrnjavčević, Serbian king

1372

• January 11 – Eleanor of Lancaster, English noblewoman (b. 1318)
• March 19 – John II, Marquess of Montferrat (b. 1321)
• March 21 – Rudolf VI, Margrave of Baden
• August 24 – Casimir III, Duke of Pomerania (b. 1348)
• August 31 – Ralph de Stafford, 1st Earl of Stafford, English soldier (b. 1301)
• date unknown – Bagrat I of Imereti, King of Georgia
• date unknown – Newaya Krestos, Emperor of Ethiopia

1373

• January 16 – Humphrey de Bohun, 7th Earl of Hereford (b. 1342)
• February – Ibn Kathir, Mamluk Islamic scholar (b. 1301)
• July 23 – Saint Birgitta, Swedish saint (b. 1303)
• November 3 – Jeanne de Valois, Queen of Navarre (b. 1343)
• December 7 – Rafał of Tarnów, Polish nobleman (b. c. 1330)
• date unknown
  • Constantine IV, King of Armenia (assassinated)
  • Robert le Coq, French bishop and councillor
  • Tiphaine Raguenel, Breton astrologer (b. c. 1335)

1374

• March 12 – Emperor Go-Kōgon of Japan (b. 1338).
• June 5 or June 6 – William Whittlesey, Archbishop of Canterbury
• June 29 – Jan Milíč of Kroměříž, Czech priest and reformer
• July 19 – Petrarch, Italian poet (b. 1304)
• September – Joanna of Flanders, Duchess of Brittany (b. 1295)
• October 27 – King Gongmin of Goryeo (b. 1330)
• November 25 – Prince Philip II of Taranto
• December 1 – Magnus Eriksson, king of Sweden (b. 1316)
• date unknown – Gao Qi, Chinese poet (born 1336)
• date unknown – Konrad of Megenberg, historian (b. 1309)

1375

• April 21 – Elisabeth of Meissen, Burgravine consort of Nuremberg (b. 1329)
• October 19 – Cansignorio della Scala, Lord of Verona (b. 1340)
• April 16 – John Hastings, 2nd Earl of Pembroke, English nobleman and soldier (b. 1347)
• May 16 – Liu Bowen, Chinese military strategist, officer, statesman and poet (b. 1311)
• July 5 – Charles III of Alençon, French archbishop (b. 1337)
• September 1 – Philip of Valois, Duke of Orléans (b. 1336)
• October 24 – King Valdemar IV of Denmark
• November 12 – John Henry, Margrave of Moravia (b. 1322)
• December 21 – Giovanni Boccaccio, Italian writer (b. 1313)
• date unknown
  • Adityawarman, king of Malayapura
  • Margaret Drummond, dowager queen consort of Scotland (b. c.1340)
  • Lațcu, voivode of Moldavia
  • Tenoch, Mexica ruler

1376

• January 24 – Richard FitzAlan, 10th Earl of Arundel, English military leader
• April 6 – Przecław of Pogorzela, Cardinal and Bishop of Wrocław (b. 1310)
• May 30 – Joan of Ponthieu, Dame of Epernon, French countess regent
• June 8 – Edward the Black Prince, son of King Edward III of England (b. 1330)
• July 22 – Simon Langham, Archbishop of Canterbury (b. 1310)
• September 30 – Adelaide of Vianden, German countess

1377

• January 27 – Frederick the Simple, King of Sicily (b. 1341)
• March 16 or March 17 – Marie de St Pol, Countess of Pembroke and Foundress of Pembroke College, Cambridge (b. c.1303)
• April – Guillaume de Machaut, French poet and composer (b. c. 1300)
• April 23 or July 11 – Richardis of Schwerin, queen consort of Sweden (b. 1347)
• May – Algirdas, Grand Prince of Lithuania
• June 21 – King Edward III of England (b. 1312)
• date unknown
  • Ibn Battuta, Moroccan explorer (b. 1304)
  • Vladislav I, Prince of Wallachia

1378

Charles IV, Holy Roman Emperor

• February 6 – Joanna of Bourbon, queen consort of Charles V of France (b. 1338)
• March 27 – Pope Gregory XI (b. c. 1329)
• July – Owain Lawgoch, titular Prince of Wales and mercenary – assassinated (b. c. 1330)
• August 4 – Galeazzo II Visconti, Lord of Milan (b. c. 1320)
• November 29 – Charles IV, Holy Roman Emperor (b. 1316)
• November 30 – Andrew Stratford, English verderer and landowner

1379

• February 18 – Albert II of Mecklenburg (b. c. 1318)
• May 29 – King Henry II of Castile (b. 1333)
• November 15 – Otto V, Duke of Bavaria (b. 1346)
• December 16 – John Fitzalan, Marshal of England (drowned)
• date unknown – Aqsara'i, Persian physician