In 1160 Shibuya Konomaru, a family member of Yoshitomo who had returned from Owari Province, came under the influence of his master's concubine Tokiwa gozen, who told of the end of Yoshitomo's life.
平治2年になって、尾張国から馳せ戻った義朝の家人渋谷金王丸は主人の愛妾　常磐御前の下へと走り、義朝の最期を伝えた。