庁南城／アクセス・場所・地図武田信長が上総統治のため真里谷城と共に築いた庁南城【お城特集日本の歴史】

Chonan Castle[Castle Special Topic Japanese History]

Age of civil war, Castle（Area）, Kanto · Kousinobu
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庁南城／アクセス・場所・地図武田信長が上総統治のため真里谷城と共に築いた庁南城【お城特集日本の歴史】

[Castle name]
Chonan castle
Takeda Nobunaga built Chonan Castle and Mariyatsu Castle to rule Kazusa

[Description]
Chonan Castle is a flatland-mountain castle located in Chonan Town, Chosei Gun, Chiba Province. Kocho 2 year (1456), [Takeda Nobunaga] accepted the order from [Ashikaga Nariuji] to build [Chonan Castle] and [Mariyatsu Castle].

He appointed his son Nobutaka in Mariyatsu Castle and he himself entered Chonan Castle and rule this place for 5 generations. Mariyatsu Castle was called [Mr. Mariyatsu] after Mr. Takeda. In order to fight with [Satomi Yoshitaka], he depended on [Hojo Ujiyasu].

The 4th leader of Mr. Mariyatsu [Mariyatsu Nobutaka] had conflict with his younger brother [Mariyatsu Nobuo], and Mr. Mariyastu’s influence were declined. He was involved in the conflict between Mr. Hojo and Mr. Satomi.

There was almost nothing recorded of the action of Mr. Takeda, therefore it is unknown. Being attacked by Satomi Yoshitaka and Yoshihiro, Mr. Mariyatsu surrendered to Mr. Satomi, but in Eiroku 7 year (1564) the second Konodai Joint Castle, when Mr. Mariyatsu was defeated by Mr. Hojo and he surrendered to Mr. Hojo.

Tensho 18 (1590), when the Battle of Odawara broke out by Toyotomi Hideyoshi, Mr. Mariyatsu was disappeared. For that reason, [Honda Tadakatsu] and [Asano Nagamasa] attacked [Mariyatsu Castle] and [Chonan Castle] and the castles fell down.