The Ichikaiso Government was a politically prominent group in Kyoto, the center of politics at the end of the Tokugawa Shogunate; it was formed of Kinri-goshuei-sotoku (Governor-general of the inner palace's guard) Sekkai-bogyo-shiki (Commander of the coastal defense of Osaka-wan Bay) Yoshinobu HITOTSUBASHI, Kyoto-shugoshoku (Military governor of Kyoto) Katamori MATSUDAIRA from the Aizu clan, and Kyoto-shoshidai (Deputy for Governor-general of Kyoto) Sadaaki MATSUDAIRA from the Kuwana clan.
一会桑政権（いちかいそうせいけん）は、幕末の政治動向の中心地京都において、禁裏御守衛総督兼摂海防禦指揮・一橋慶喜、京都守護職・松平容保（会津藩）、京都所司代・松平定敬（桑名藩）三者により構成された体制。