, to Hideyoshi dated April 1588, concerning the suppression of Christians, a National Treasure of Japan Also in 1585, Hideyoshi launched the
siege of Negoro-ji and subjugated
Kii Province. The
Negoro-gumi, the warrior monks of
Negoro-ji, were allied with the
Ikkō-ikki and with
Tokugawa Ieyasu, whom they supported in the
Battle of Komaki and Nagakute the previous year. After attacking a number of other outposts in the area, Hideyoshi's forces attacked Negoro-ji from two sides. Many of the Negoro-gumi had already fled to
Ōta Castle by this time, which Hideyoshi later
besieged. 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. In the 1585
Invasion of Shikoku, Toyotomi forces seized Shikoku island, the smallest of Japan's four main islands, from
Chōsokabe Motochika. Toyotomi's forces arrived 113,000 strong under
Toyotomi Hidenaga,
Toyotomi Hidetsugu,
Ukita Hideie and the
Mōri clan's "Two Rivers",
Kobayakawa Takakage and
Kikkawa Motoharu. Opposing them were 40,000 men of Chōsokabe's. Despite the overwhelming size of Hideyoshi's army, and the suggestions of his advisors, Motochika chose to fight to defend his territories. During the late summer of August 1585, Hideyoshi launched an attack on
Etchū Province and
Hida Province where he
besieged Toyama Castle.
1586-1588 activities In 1586 Hideyoshi conquered
Kyūshū, wresting control from the
Shimazu clan.
Toyotomi Hidenaga, Hideyoshi's half-brother, landed in the south of
Bungo Province on Kyūshū's eastern coast. Meanwhile, Hideyoshi took his own forces down a more western route, in
Chikuzen Province. Later that year, with a total of 200,000 soldiers against the 30,000 men of the Shimazu forces, the two brothers met in
Satsuma Province. They
besieged Kagoshima castle, the Shimazu clan's home. The Shimazu surrendered. In 1588, Hideyoshi forbade ordinary peasants from owning weapons and launched a
sword hunt to confiscate all such weapons. The weapons were melted down into building material for the Hall of the Great Buddha at the
Hōkō temple in
Kyoto. which was built by Hideyoshi. This measure effectively stopped peasant revolts, and ensured greater stability at the expense of freedom of the individual daimyō.
Odawara Campaign In 1590, Hideyoshi carried out the
Odawara Campaign against the
Later Hōjō clan in the
Kantō region, in what historian
Stephen Turnbull refers to as "the most unconventional siege lines in samurai history". The samurai were entertained by everything from concubines, prostitutes, and musicians to
acrobats, fire-eaters, and
jugglers. The defenders slept on the ramparts with their
teppō and armor; despite their smaller numbers, they discouraged Hideyoshi from attacking. Hideyoshi had
Ishigakiyama Ichiya Castle secretly constructed in a nearby forest. During the siege, Hideyoshi offered Ieyasu the eight Hōjō-ruled provinces in the
Kantō region, in exchange for the submission of Ieyasu's five provinces, which Ieyasu accepted. In late September of the same year, an uprising broke out in the Yokote Basin, Senboku district (
Senboku District, Akita in post-Meiji era), in opposition to the Taiko land survey conducted by the Toyotomi government. Although the Senboku rebellion was suppressed later, the result was a disaster for the
Onodera clan. Following Rikyū's death, Hideyoshi turned his attention from tea ceremony to
Noh, which he had been studying since becoming Imperial Regent. During his brief stay in
Nagoya Castle in what is today
Saga Prefecture, on
Kyūshū, Hideyoshi memorised the
shite (lead role) parts of ten Noh plays, which he then performed, forcing various
daimyō to accompany him onstage as the
waki (secondary, accompanying role). He even performed before the emperor. The
Kunohe rebellion, an
insurrection that occurred in
Mutsu Province from March 13 to September 4, 1591, began when
Kunohe Masazane, a claimant to daimyo of the
Nanbu clan, launched a rebellion against his rival
Nanbu Nobunao which spread across Mutsu Province. Nobunao was backed by Hideyoshi, who along with sent a large army into the
Tōhoku region in mid-1591 which quickly defeated the rebels. Hideyoshi's army arrived at
Kunohe Castle in early September. Masazane, outnumbered, surrendered Kunohe Castle and was executed with the castle defenders. The Kunohe rebellion was the final battle in Hideyoshi's campaigns during the Sengoku period and completed the unification of Japan. == Taikō (1592–1598) ==