Hatakeyama clan
Shigeyasu was one of the samurai who, in December 1204, was chosen to go to Kyoto to pick up shōgun Sanetomo's wife, and it was in that occasion that, at a feast, he had a verbal fight with Hiraga Tomomasa, who was responsible for the capital's defenses. It appears that this fact, plus the hostility existing between Shigetada and Tomomasa, who had neighboring fiefs, offered the Hōjō a pretext to get rid of the Hatakeyama clan, that consequently became extinct. It would be revived later by Hōjō Tokimasa.