Amidst security concerns regarding Russian encroachment and the numerous broader domestic and foreign affairs concerns of the time, the shogunate ordered [[Matsumae Takahiro]] on [[1855]]/2/22 to give up the entirety of the territory of Ezo to the shogunate, with the exception of an area immediately around Matsumae proper.<ref>Ishin Shiryô Kôyô 維新史料綱要, vol 2 (1937), 19.</ref> | Amidst security concerns regarding Russian encroachment and the numerous broader domestic and foreign affairs concerns of the time, the shogunate ordered [[Matsumae Takahiro]] on [[1855]]/2/22 to give up the entirety of the territory of Ezo to the shogunate, with the exception of an area immediately around Matsumae proper.<ref>Ishin Shiryô Kôyô 維新史料綱要, vol 2 (1937), 19.</ref> |