In 1590 he took part in the Siege of Odawara together with his father Hidemasa, and succeeded to his father as the head of the family due to his father's death in the camp during the battle.
天正18年（1590年）、父・秀政とともに小田原征伐に参陣したが、父がそのときに陣中にて病死したため、家督を継ぐこととなった。