德川家定
In May 1868, "Shōgun" Tokugawa Yoshinobu was forced to resign his office, and the Tokugawa clan under the new leadership of Tokugawa Iesada was given the provinces of Suruga, Tōtōmi and a portion of Mikawa Province as compensation. The Inoue clan was reassigned to a new 60,000 "koku" domain in Kazusa Province called Tsurumai Domain in September of the same year. In 1869, Inoue Masaharu became domain governor of Tsurumai Domain under the Meiji government. The domain was abolished in 1871 with the abolition of the han system. After the establishment of the "kazoku" peerage system, he became a viscount ("shishaku"). He later became a student of C. Carrothers at the Keio Gijuku in Tokyo.