Iwabitsu Castle

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
Iwabitsu Castle
Higashiagatsuma, Gunma Prefecture, Japan
Mounds around the foundation of Iwabitsu Castle
Coordinates36°33′33″N 138°48′16″E / 36.559152°N 138.8043768°E / 36.559152; 138.8043768
TypeMountaintop castle
Site history
Built15th century
Built bySaitō clan
Garrison information
Sanada Yukitaka, Sanada Masayuki

Iwabitsu Castle (岩櫃城, Iwabitsu-jō) is a "yamashiro" (castle on a mountaintop) located on Mount Iwabitsu in Higashiagatsuma, Gunma Prefecture, Japan.


Iwabitsu Castle was built in the fifteenth century by Azuma Taro Sukefusa of the Takeda clan. It later came under control of the Saitō clan (retainers of the Uesugi clan). The castle once again came under control of the Takeda Clan following a battle. Sanada Yukitaka became lord after this seizure. The Sanada clan, of whom Yuritaka was a member, retained control of the area after the Takeda Clan (with which the Sanada Clans was at first affiliated) collapsed by changing their loyalty to whichever clan seemed to have the upper hand. In 1615, however, Shōgun Tokugawa Ieyasu declared that each province could have only one castle. As a result, the Sanada Clan dismantled Iwabitsu castle, preferring to instead retain Ueda Castle.[1]

An interesting footnote of Iwabitsu Castles's history is that the legendary samurai Karasawa Genba was an officer at the castle.[citation needed]

Today, only ruins remain. Iwabitsu Castle was listed as one of the Continued Top 100 Japanese Castles in 2017.[2]

Iwabitsu mountain(Iwabitsu Castle)


  1. ^ 日本吉 - Nippon-Kichi
  2. ^ "続日本100名城" (in Japanese). 日本城郭協会. Retrieved 25 July 2019.