The war with Osaka changed this when Naokatsu refused to fight. Tokugawa inserted Naotaka into the leadership of the Ii family because of his service during the Osaka campaign. Naotaka distinguished himself and his clan especially at the Battle of Tennoji where his 'red devils' were pivotal in defeating their Osaka enemies. He was awarded Hikone castle for his service and he lived there till his death in 1659.