It is thought that Narimori supporting the Minamoto clan was defeated and killed by Motoyasu supporting the Taira clan, although the Minamoto clan defeated the Taira clan in the captal.
おそらく、中央での平氏滅亡に反して源氏方の成盛は平氏方の基保との戦いに敗れ滅亡したものと考えられる。