- Other Names: 徳川頼久 (Tokugawa Yorihisa)
- Japanese: 徳川 茂承 (Tokugawa Mochitsugu)
Born Matsudaira Yorihisa, son of Matsudaira Yorisato, lord of Saijô han, he was adopted into the Kishû (Wakayama) Tokugawa clan in order to replace Yoshitomi, who had no direct heir. Mochitsugu then received the honor of the use of the mochi character from Iemochi at his genpuku on 1858/10/13, changing his name to Mochitsugu from Yorihisa.
- Ishin Shiryô Kôyô 維新史料綱要, vol 2 (1937), 598.
- Ishin Shiryô Kôyô 維新史料綱要, vol 3 (1937), 82.