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Concept
Tokugawa Ieyasu
Summary
Tokugawa Ieyasu was the founder and first shōgun of the Tokugawa Shogunate of Japan, which ruled from 1603 until the Meiji Restoration in 1868. He was one of the three "Great Unifiers" of Japan, along with his former lord Oda Nobunaga and fellow Oda subordinate Toyotomi Hideyoshi. The son of a minor daimyo, Ieyasu once lived as a hostage under daimyo Imagawa Yoshimoto on behalf of his father. He later succeeded as daimyo after his father's death, serving as a vassal and general of the Oda clan, and building up his strength under Oda Nobunaga.
After Oda Nobunaga's death, Ieyasu was briefly a rival of Hashiba Hideyoshi, before declaring his allegiance and fighting on his behalf. Under Hashiba, Ieyasu was relocated to the Kanto plains in eastern Japan, away from the Hashiba power base in Osaka. He built his castle in the fishing village of Edo (now Tokyo). He became the most powerful daimyo and the most senior officer under the Toyotomi regime (Hideyoshi's new clan name). Ieyasu preserved his strength in Toyotomi's failed attempt to conquer Korea. After Hideyoshi's death, Ieyasu seized power in 1600, after the Battle of Sekigahara. He received appointment as shōgun in 1603, and voluntarily abdicated from office in 1605, but remained in power until his death in 1616. He implemented a set of careful rules known as the bakuhan system, designed to keep the daimyo and samurai in check under the Tokugawa Shogunate.
During the Muromachi period, the Matsudaira clan controlled a portion of Mikawa Province (the eastern half of modern Aichi Prefecture). Ieyasu's father, Matsudaira Hirotada, was a minor local warlord based at Okazaki Castle who controlled a portion of the Tōkaidō highway linking Kyoto with the eastern provinces. His territory was sandwiched between stronger and predatory neighbors, including the Imagawa clan based in Suruga Province to the east and the Oda clan to the west. Hirotada's main enemy was Oda Nobuhide, the father of Oda Nobunaga.
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