On February 7, the Taira family was defeated in the Battle of Ichi no tani, at which Norimori's sons Michimori, Noritsune, and Narimori met their deaths on the battlefield (it is said that Noritsune survived the battle).
7日に行われた福原を巡る一ノ谷の戦いで平家は惨敗し、嫡男の通盛をはじめ、子の教経、業盛がみな討ち死にした（教経については生存説あり）。