After Yoritomo's death in 1199, his successor, MINAMOTO no Yoriie, who was young, tried to start managing the government with his close adviser group, shutting away the gokenin (shogunal retainers of the Kamakura bakufu) to whom Yoritomo had given important posts, such as the Hojo clan and the Kajiwara clan.
正治元年（1199年）に頼朝が死去した後、後継者の源頼家は、若年の上に北条氏や梶原氏など頼朝が重用した御家人を遠ざけて、新たに自分の側近グループで政権を運営しようとした。