It is notable as the first battle that involved the alliance between Hideyoshi and Tokugawa Ieyasu. With 220,000 men, the massive army of Toyotomi Hideyoshi surrounded Odawara Castle and its 82,000-strong Hōjō garrison, in what has been called "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 arquebuses and armor; despite their smaller numbers, they discouraged Hideyoshi from attacking. After three months the Hōjō surrendered, losing the will to fight after the sudden appearance of Ishigakiyama Ichiya Castle. This eliminated the last resistance to Hideyoshi's authority. His victory signified the end of the Sengoku period. 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. Ieyasu accepted this proposal. Death of Sen no Rikyū In February 1591, Hideyoshi ordered Sen no Rikyū to commit suicide, likely in one of his angry outbursts. Rikyū had been a trusted retainer and master of the tea ceremony under both Hideyoshi and Nobunaga. Under Hideyoshi's patronage, Rikyū made significant changes to the aesthetics of the tea ceremony that had a lasting influence over many aspects of Japanese culture. After the completion of the Sanmon gate (金毛閣, in the offering written by Shunoku Sōen at the request of Rikyū, thousands of households opened their door at once said this sentence, which angered Hideyoshi then became a turning point of the relationship between Rikyū and Hideyoshi. Finally Hideyoshi ordered him to commit ritual suicide. Even after Rikyū's death, Hideyoshi is said to have built his many construction projects based upon aesthetics promoted by Rikyū, perhaps suggesting that he regretted his actions. 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. Kunohe Rebellion The Kunohe rebellion was an insurrection in the Sengoku period of Japan, that occurred in Mutsu Province from 13 March to 4 September 1591. Kunohe Masazane, a claimant to daimyo of the Nanbu clan, launched a rebellion