According to "Gyokuyo," a Diary of Kanezane KUJO, Yoshitsune who was the leader of the Karamete troops (the force attacking the rear of the enemy force or a castle) took Tanba-jo Castle (Mikusa-yama Mountain) and continued to take the Ichinotani fortress.
九条兼実の日記『玉葉』では搦手の義経が丹波城（三草山）を落とし、次いで一ノ谷を落とした。