At the same time, Toiseibaiken (the right of ruling the north-eastern regions of Japan) split into two authorities as Mutsu Province Chinjufu (the defense capital of the North) and Akita-jo Castle of Dewa Province were integrated into Chinjufu as a single authority.
それと同時に、陸奥鎮守府と出羽秋田城に分かれていた東夷成敗権が鎮守府に一本化された。