It is described in "Taiheiki" that his horse couldn't jump over a ditch and fell down because it was injured by an arrow, that a stray arrow hit the middle of his forehead while he was held under the horse, and that he cut off his own head.
『太平記』においては、乗っていた馬が矢を受けて弱っていたため堀を飛び越えられず転倒し、左足が馬の下敷きになったところに流れ矢を眉間に受け、自分で首を掻き切ったと記述されている。