薩摩國
He was also known by his court title, . He promoted Tōdō Takatora to chief engineer. He led Hideyoshi's vanguard force a few years later into Satsuma Province, contributing heavily to his half-brother's victories in gaining control of Kyūshū. Hidenaga was awarded the provinces of Kii, Izumi and Yamato, reaching a governance of one million "koku".