In 1590, when the Siege of Odawara occurred, Hideyoshi TOYOTOMI and his army, surrounding Odawara-jo Castle, ordered other clans in Kanto and Tohoku to join the battle.
天正18年（1590年）小田原の役がおこり、豊臣秀吉は小田原城を包囲し、関東、東北地方の諸氏に参陣を命じた。