Around the period of Yoritomo's death, the power of the anti-bakufu group in the Imperial Court was strengthened by the failure of the judai (an Imperial Consort's bridal entry into court) campaign of Ohime (a daughter of MINAMOTO no Yoritomo).
頼朝死去の前後、大姫(源頼朝の娘)入内運動の失敗により朝廷の反幕府派が攻勢を強めていた。