destroyed Katsuie's forces. Hideyoshi had thus consolidated his own power, dealt with most of the Oda clan, and controlled 30 provinces. The famous kirishitan daimyo and samurai Dom Justo Takayama fought on his side at this epic battle. Conflict with Ieyasu In 1584, Nobunaga's other son, Oda Nobukatsu, remained hostile to Hideyoshi. Nobukatsu allied himself with Tokugawa Ieyasu, and the two sides fought at the inconclusive Battle of Komaki and Nagakute. It ultimately resulted in a stalemate, although Hideyoshi's forces were delivered a heavy blow. Ieyasu and Hideyoshi never actually fought against each other themselves but the former managed to check the advance of the latter's allies. Finally, Hideyoshi made peace with Nobukatsu, ending the pretext for war between the Tokugawa and Hashiba clans. Hideyoshi sent Tokugawa Ieyasu his younger sister Asahi no kata and mother Ōmandokoro as hostages. Toyotomi clan Like Oda Nobunaga before him, Hideyoshi never achieved the title of shōgun. Instead, he arranged to have himself adopted by Konoe Sakihisa, one of the noblest men belonging to the Fujiwara clan and secured a succession of high court titles Chancellor (Daijō-daijin), including, in 1585, the prestigious position of Imperial Regent (kampaku). Also in 1585, Hideyoshi was formally given the new clan name Toyotomi (instead of Fujiwara) by the Imperial Court. He built a lavish palace, the Jurakudai, in 1587, and entertained the reigning Emperor, Emperor Go-Yōzei, the following year. Unification of Japan (1585–1592) Negoro-ji Campaign Afterwards in 1585, Hideyoshi launched the siege of Negoro-ji and subjugated Kii Province. The Negoro-gumi, the warrior monks of Negoro-ji, were quite skilled in the use of firearms, and were devout followers of Shingi, a branch of the Shingon sect of Buddhism. They were allied with the Ikkō-ikki, and with Tokugawa Ieyasu, one of Toyotomi's chief rivals. In particular, they attracted Hideyoshi's ire for their support of Tokugawa in the Battle of Komaki and Nagakute the previous year. After attacking a number of other warrior monk outposts in the area, Hideyoshi's force turned to the monastery of Negoro-ji, attacking it from two sides. By this time, many of the Negoro-gumi had already fled to Ōta Castle. Later, Hideyoshi besieged Ōta Castle. The complex was set aflame, beginning with the residences of the priests, and Hideyoshi's samurai cut down monks as they escaped the blazing buildings. Shikoku Campaign In the 1585 invasion of Shikoku, Toyotomi forces seized and conquered Shikoku island, the smallest of