In February the same year, he was defeated in the Battle of Yashima against MINAMOTO no Yoshitsune's forces and the Battle of Dan-no-ura in March the same year; his territories were confiscated as the Taira clan's property by the bakufu.
同年2月、源義経軍との屋島の戦い、同年3月、壇ノ浦の戦いに敗北し、平家没官領として領地を没収された。