Nobuhisa TAKEDA, the son of the twlefth head of the Kai-Takeda clan Nobuharu Takeda, moved from Kai Province to Kitaura in Hitachi Province in 1392 and constructed his residential castle.
1392年（明徳3年）、甲斐武田家12代武田信春の子・武田信久が甲斐国より常陸国北浦に下り居城を構えた。