Hidenaga 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. He took part in the 1582
Battle of Yamazaki, the 1583
Battle of Shizugatake, also lead Toyotomi's troops at the
Invasion of Shikoku (1585), and the 1587
Battle of Takajo,
Battle of Sendaigawa and
Siege of Kagoshima. He died 15 February 1591, at
Kōriyama,
Yamato Province (now
Nara Prefecture), and his tomb is called . During the Warring States period, it was not uncommon for even parents and siblings to engage in lethal conflicts, yet he unwaveringly supported his brother. Many historians believe that "Had Hidenaga lived longer, the Toyotomi regime would have been secure". Indeed, Hideyoshi's Korean campaign and the purge of
Hidetsugu occurred after the deaths of Hidenaga and
Sen no Rikyū. ==Family==