It was said that causes of defeat in the Battle of Ichinotani include a false proposal for peace by Goshirakawa and surprise attack by the Minamoto clan (Article for April 9 in "Azuma Kagami") and therefore, the Taira clan's resentment against Goshirakawa was profound.
一ノ谷の戦いの敗因には、後白河による虚偽の和平提案・源氏の不意打ちがあったとされ（『吾妻鏡』2月20日条）、平氏の後白河への恨みは激しいものがあった。