After months of the Siege, Ujimasa surrendered and committed suicide with his younger brother, Ujiteru, which brought an end to the rule over the Kanto region by the Sengoku daimyo, the Hojo clan.
数ヶ月の籠城の末に降伏し、弟の氏照とともに自害して、戦国大名北条氏による関東支配は終わった。