So that Yoshitaka's head did not fall into the hands of the enemy, it is said that Yoshitomo purposely weighted the head and submerged it in a lake at Katada (Otsu City, Shiga Prefecture).
義朝は義隆の首が敵の手に落ちぬよう、自ら堅田の湖（滋賀県大津市）に重しをつけて沈めたという。