In 1582, when Nobunaga died at the Honnoji Incident, he attacked his enemies Terumori EMA and the Kojima clan, as well as his real younger brother Akitsuna NABEYAMA, conquering Hida thoroughly.
天正10年（1582年）、信長が本能寺の変で死去すると、かねてから敵対関係にあった江馬輝盛や小島氏、さらに実弟の鍋山顕綱を討って、飛騨を完全に制圧した。