St. Vrtanes I

Vrtanes also known Saint Vrtanes (Armenian: Սբ. Վրթանէս Ա. Պարթև) was the 14th Catholicos-Patriarch of the Armenian Apostolic Church serving from 333 until his death in 341. He was the son of Julitta (or Mariam) of Armenia and Gregory the Illuminator.

In 333, Vrtanes succeeded Aristaces as third in line in the then-hereditary Gregorid line of the Catholicos of the Armenian Catholic Church. Vrtanes was the first son born to St. Gregory I the Illuminator by his wife Miriam and his younger brother was St. Aristaces I. He was the father of St. Husik I and Grigoris.

He died on 341 in which he was replaced by his eldest son, St. Husik I, as the next Catholicos-Patriarch.