// Workers AI · dad joke modeWhy did Sister Castle go to the party? Because she was a sibling sensation.

A sister castle or twin castle relationship is the castle equivalent of sister city, between two geographically distinct castles, usually by agreement between two local governments famous for castles.

Some Japanese castles establish sister relationships with not only domestic castles but also European castles.

Details

On 26 March 2015, Conwy Castle in Wales was twinned with Himeji Castle. Both castles are World Heritage Sites.^[1]^[2]

The term friendship castle alliance (友好城郭) is also used, but it is distinguished from sister castle(姉妹城) like the examples of Himeji Castle and Osaka castle.^{[citation needed]}

List of sister castles and friend castles


	Sister castle relationship(姉妹城)
	Friendship castle alliance(友好城郭)

Date		Distinction		Distinction	ref.
1966, 15 August	Hikone Castle	National Treasure National Special Historic Site of Japan	Takamatsu Castle	Important Cultural Property National Historic Site of Japan National Place of Scenic Beauty	^[3]
1983, 29 April	Nagahama Castle	-	Osaka Castle	Important Cultural Property National Special Historic Site of Japan	^[4]
1985, 2 November	Osaka Castle	Important Cultural Property National Special Historic Site of Japan	Wakayama Castle	Important Cultural Property National Historic Site of Japan National Place of Scenic Beauty	^[4]
1989, 2 November	Marksburg	World Heritage Site	Maruoka Castle	Important Cultural Property	^[5]^[6]
1989, 11 May	Château de Chantilly	Monument historique	Himeji Castle	World Heritage Site National Treasure National Special Historic Site of Japan	^[7]^[8]
2006, 10 October	Osaka Castle	Important Cultural Property National Special Historic Site of Japan	Ueda Castle	National Historic Site of Japan	^[4]
2009, 2 October	Schloss Eggenberg	World Heritage Site	Osaka Castle	National Historic Site of Japan Special Historic Sites	^[4]
2015, 26 March	Himeji Castle	World Heritage Site National Treasure National Special Historic Site of Japan	Neuschwanstein Castle	-	^[7]^[8]
2017, 11 April	Château des ducs de Bretagne	Monument historique	Osaka Castle	Important Cultural Property National Special Historic Site of Japan	^[4]
2019, 29 October	Conwy Castle	World Heritage Site Listed building-Grade 1	Himeji Castle	World Heritage Site National Treasure National Special Historic Site of Japan	^[8]
2022, 3 October	Osaka Castle	Important Cultural Property National Special Historic Site of Japan	Castello Sforzesco	-	^[9]

References

↑ "Conwy and Himeji castles' twinning starts 'beautiful friendship'".
↑ "【お城TOPICS】姫路城とコンウィ城が姉妹城に".
↑ "彦根市について" (in Japanese).
1 2 3 4 5 "大阪城天守閣九十年の歴史" (in Japanese).
↑ "レファレンス事例詳細" (in Japanese).
↑ "越前丸岡城" (PDF) (in Japanese).
1 2 "姉妹都市（海外・国内）/姉妹城" (in Japanese).
1 2 3 "姫路市の海外姉妹・友好都市、姉妹城、観光交流城" (in Japanese).
↑ "「姉妹城・友好城郭紹介」パネル展示コーナーに「スフォルツェスコ城」が加わりました" (in Japanese).

[1] "Conwy and Himeji castles' twinning starts 'beautiful friendship'".

[2] "【お城TOPICS】姫路城とコンウィ城が姉妹城に".

[3] "彦根市について" (in Japanese).

[Osaka-4] 1 2 3 4 5 "大阪城天守閣九十年の歴史" (in Japanese).

[5] "レファレンス事例詳細" (in Japanese).

[6] "越前丸岡城" (PDF) (in Japanese).

[Himeji-7] 1 2 "姉妹都市（海外・国内）/姉妹城" (in Japanese).

[Himeji2-8] 1 2 3 "姫路市の海外姉妹・友好都市、姉妹城、観光交流城" (in Japanese).

[9] "「姉妹城・友好城郭紹介」パネル展示コーナーに「スフォルツェスコ城」が加わりました" (in Japanese).

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// Workers AI · dad joke modeWhy did Sister Castle go to the party? Because she was a sibling sensation.

Details

List of sister castles and friend castles

See also

References