Kasugayama Castle

Kasugayama Castle
Kasugayama Castle
春日山城
Jōetsu, Niigata, Japan
	Kasugayama Castle from Jōetsu-shi Maizō Bunkazai Center
	Kasugayama Castle Kasugayama Castle
Coordinates	37°08′50″N 138°12′20″E / 37.147108°N 138.205597°E
Type	yamashiro-style Japanese castle
Site information
Controlled by	Nagao clan, Uesugi clan, Hori clan
Condition	Ruins; only earthwork walls and dry moat remain
Site history
Built	Year Unknown
Built by	Nagao clan
In use	until 1607
Garrison information
Past; commanders	Nagao Tamekage, Uesugi Kenshin, Uesugi Kagekatsu
	National Historic Site of Japan

Kasugayama Castle (春日山城, Kasugayama-jō) is a Sengoku period yamashiro-style Japanese castle located in the Nakayashiki neighborhood of the city of Jōetsu, Niigata prefecture. It was the primary fortress of the warlord Uesugi Kenshin, and was originally built and ruled by the Nagao clan. It is listed as one of Japan's Top 100 Castles and the ruins have been protected as a National Historic Site since 1935.^[1] The castle and its history were mentioned by Takizawa Bakin, and Yamazaki Yoshishige in Tanki manroku.^[2] Kasugayama Castle is regarded as among Japan's Five Greatest Mountain Castles, along with Nanao Castle, Odani Castle, Kannonji Castle and Gassantoda Castle. The castle is unofficially called Hachigamine Castle (鉢ヶ峰城, Hachigamine-jō).^[3]

^ "春日山城跡". Cultural Heritage Online (in Japanese). Agency for Cultural Affairs. Retrieved 25 September 2018.
^ Margarita Winkel (2012). "Entertainment and education: An antiquarian society in Edo, 1824-25". Uncharted Waters: Intellectual Life in the Edo Period: Essays in Honour of W.J. Boot. BRILL. p. 21. ISBN 9789004229013.
^ Isomura, Yukio; Sakai, Hideya (2012). (国指定史跡事典) National Historic Site Encyclopedia. 学生社. ISBN 4311750404.(in Japanese)