Furthermore, there is a theory that, when Shogunate was transferred to Hidetada, the titles of Genji no choja (chief of the Minamoto clan) and Shogakuin no Betto (chief of Shogakuin) were not transferred (Tomohiko OKANO "Genji and King of Japan").
なお将軍襲職の際、源氏長者、奨学院別当は譲られなかったとする説がある（岡野友彦『源氏と日本国王』）。