Although his circumstance afterwards is unclear even now, there are some speculations about it: the description of his death might have been deleted in the process of compiling "Azuma Kagami", which was edited by the HOJO family; he might have escaped somewhere because he was Yoshitoki's father-in-law; or he might have already died before the conspiracy.
北条氏編纂書である『吾妻鏡』による編集か、義時の舅であった故に逃れたのか、それ以前に死去したのかは不明。