Along with his father he allied with the Western forces during the Battle of Sekigahara and defended the Tamatsukuriguchi entrance to Osaka Casle in July 1600 and in September participated in the Battle of Otsu-jo Castle however, he capitulated after hearing of defeat in the major battle.
関ヶ原の戦いで父とともに西軍に属し、1600年7月大坂玉造口を守備、9月には大津城の戦いに参加するが、本戦での敗報を聞き降伏。