Yamada Castle山田城

Yamada Castle山田城 - Credit: Wikimedia Commons

was a Ryukyuan gusuku during the Gusuku Period of Ryukyuan history. It is famous for being the birthplace of the Ryukyuan general Gosamaru."Gosamaru." Okinawa konpakuto jiten (沖縄コンパクト事典, "Okinawa Compact Encyclopedia"). Ryukyu Shimpo (琉球新報). 1 March 2003. Accessed 25 July 2009. Gosamaru led the army of the castle's magiri against Nakijin Castle in 1416, helping the King of Chūzan to conquer Hokuzan. In return for his loyalty, Gosamaru was given land in Yomitanzan and allowed to build a new gusuku. He used materials from Yamada Castle to build Zakimi Castle in 1420. The ruins of Yamada Castle are in present-day Onna, Okinawa, in the Yamada district. Read more on Wikipedia

type: military installation
date from: 13th century

Source: en.wikipedia.org