His eldest son, Yasutoki HOJO, was a wise and accomplished man who was expected to be a good leader but Yoshitoki's widow, Iga no kata, schemed to hand the regency to her biological son, Masamura HOJO, through an alliance with the powerful Yoshimura MIURA.
長男の北条泰時は見識も実績もあり期待されていたが、義時の後室の伊賀の方は実子の北条政村の執権擁立を画策して、有力御家人の三浦義村と結ぼうとした。