The regent Hojo clan in the Kamakura bakufu without a shogun of the Minamoto clan origin, accepted two-year-old Yoritsune, a great-grandson of a younger sister of MINAMOTO no Yoritomo, as Kamakura-dono (lord of Kamakura).
源氏将軍なき後の鎌倉幕府は執権北条氏は、源頼朝の妹の曾孫にあたる頼経を2歳で鎌倉殿として迎えた。