However, within the Ishikawa-Genji's territory, the Kusunoki clan who are famous for Masashige KUSUNOKI had developed power since the end of the Kamakura period, and Ishikawa-Genji gradually became weak.
しかし、石川源氏が勢力圏とした地域は、鎌倉末期より楠木正成で有名な楠木氏が台頭し、石川源氏は弱体化していく。