The Hoshina clan and the Shinomiya clan who sided with Tokiyuki attacked the forces of Sadamune OGASAWARA, military governor of Shinano Province, in the battle of Aonuma and moved from place to place along the Shinano-gawa River to fight.
時行勢の保科氏や四ノ宮氏らは青沼合戦において信濃国守護小笠原貞宗を襲撃し、千曲川沿いを転戦した。