Three years after the death of Kagetoki on June 1203, Yoriie arrested and killed Zenjo ANO, who was the husband of Awa no tsubone (Sanetomo's menoto and a daughter of Tokimasa HOJO) and was a brother of Yoritomo, for treason.
景時滅亡の3年後、建仁3年（1203年）5月、頼家は実朝の乳母・阿波局(北条時政の娘)の夫で頼朝の弟である阿野全成を謀反人の咎で逮捕、殺害した。