However, when MINAMOTO no Yoritomo's family ended with MINAMOTO no Sanetomo, the privileges Yoritomo monopolized as the direct descendant of the Minamoto clan as well as the ruling power were overtaken by the Hojo family, the maternal relative of the Minamoto family.
しかし、源頼朝の一族が源実朝で滅びると、せっかく頼朝が独占した源氏嫡流たる特権も、外戚北条氏に実権を奪われてしまった。