It is supposed that Tokimasa made the father and son of the Hatakeyama family culpable as traitors to get rid of them, and although his sons, Yoshitoki and Tokifusa HOJO were opposed to their father when Tokimasa ordered the subjugation of the Hatakeyama family, finally they followed his orders.
時政は畠山父子を排斥すべく謀反人に仕立て上げたとされ、時政に畠山討伐を命じられた息子北条義時・北条時房は反対したが押し切られた。