In 1855 this palace was built under Ritsuryo Style (a system of centralized government based on ritsuryo codes) having Sadanobu MATSUDAIRA (he was not the same famous person as a Senior Councilor in the Kansei Reforms) as Sobugyo (Grand Magistrate).
1855年に松平定信（寛政の改革で有名な老中とは別人）を総奉行として律令制の形式に則って改築された。