德川家定
In May 1868, with the Meiji Restoration, "Shōgun" Tokugawa Yoshinobu was forced to resign his office, and the Tokugawa clan under the leadership of Tokugawa Iesada was given the provinces of Suruga, Tōtōmi and a portion of Mikawa Province as compensation. The Ōta clan was reassigned to a new domain in Kazusa Province called Shibayama Domain in July of the same year with the same nominal "kokudaka" of 53,350 "koku". In 1869, he became imperial governor of Shibayama under the Meiji government.