Accepting this order, Shichiromaro succeeded to the Hitotsubashi Family on September 1; in December, he received Henki (one character of Shogun's name: 慶) from the 12th Shogun Ieyoshi (家慶) TOKUGAWA and changed his name to Yoshinobu (慶喜).
これを受けて七郎麿は9月1日に一橋家を相続し、12月には12代将軍・徳川家慶から偏諱を賜わり慶喜を名乗る。