In November of the same year, TAIRA no Yoshimasa, whose clan was related to MINAMOTO no Mamoru through marriage, assembled an army and set up camp in Kawawa, Nihari-no-sato Village (Yachiyo-cho) along the Kinu-gawa River, where he faced off against Masakado, but Masakado also obliterated Yoshimasa's army.
同年10月、源護と姻戚関係にある一族の平良正は軍勢を集め鬼怒川沿いの新治郷川曲（八千代町）に陣を構えて将門と対峙するが、将門は良正の軍をも撃破する。