In 1558, he and Motoharu KIKKAWA attacked Kawamoto-Nukuyu Castle, where Nagataka OGASAWARA had taken refuge, in order to recapture the Iwami silver mine.
永禄元年（1558年）、石見銀山を取り戻すべく毛利元就・吉川元春は小笠原長雄の籠る川本温湯城を攻撃。