It can be said that this biggest failure of Yoritomo, who had always been a severe politician, was caused by his feeling as a father or showed his limit that he could not put away a hope to become a maternal relative by making his daughter an empress as a descendant of nobles living in the capital.
それまで常に冷徹な政治家であった頼朝の、この最大の失策は父親としての思いからとも、娘を天皇の后に立て自らが外戚になるという、中央貴族の末裔としての意識を捨てきれなかった頼朝の限界とも言える。