Moreover, he assassinated the third Shogun Sanetomo in an attempt to make his son-in-law Tomomasa HIRAGA the Shogun, but faced oppositions from his daughter Masako and his son Yoshitoki HOJO and was forced to become a priest.
さらに、3代将軍実朝をも暗殺して娘婿の平賀朝雅を将軍に立てようとしたが、娘の政子や息子の北条義時に反対され出家させられた。