Businessman Eiichi SHIBUSAWA was a vassal appointed during [Yoshinobu's] tenure as the head of the Hitotsubashi Tokugawa Family, and they kept their contact even after the Meiji Restoration.
実業家渋沢栄一は一橋徳川家当主時代に登用した家臣で、明治維新後も親交があった。