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How did Tokugawa Ieyasu limit the power of daimyo after becoming shogun?
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Tokugawa Ieyasu
Statue of Tokugawa Ieyasu at the Tōshō Shrine in Nikkō, Japan.
After becoming shogun, Tokugawa Ieyasu employed several strategic measures to limit the power of the daimyo and consolidate the authority of the Tokugawa shogunate:
- Territorial Reorganization: Following the Battle of Sekigahara, Ieyasu dispossessed, reduced, or transferred the lands of daimyo who had opposed him. He redistributed these territories to his own relatives and loyal retainers to ensure strategic control over key regions.1
- Legal Control: Ieyasu established the Buke Shohatto (Laws for the Military Houses), which provided the legal framework for the shogunate to regulate the activities and conduct of the daimyo.1
- Elimination of Rivals: He systematically removed potential threats to his family's legitimacy, most notably by destroying the Toyotomi family and Hideyori at Osaka Castle in 1615.21
- Systematic Surveillance: While the sankin kōtai (alternative attendance) system was formally inaugurated by his successor, Iemitsu, it served as a sophisticated form of hostage-taking that forced daimyo to maintain households in Edo and spend significant wealth on travel and dual administration, keeping them financially constrained and under the shogun's watchful eye.341