Tokugawa Ieyasu Establishes Hegemony

Timeline

1. 1600Osaka · KinkiAfter Sekigahara, Ieyasu entered Osaka, took over the central institutions of the Toyotomi regime, began purging Western Army daimyō and redistributing domains, shifting the political center of the nation toward the Tokugawa line.
2. 1600Kyoto · KinkiIeyasu on a large scale deposed, executed, or reduced the domains of Western Army daimyō, while manipulating court aristocratic appointments through imperial offices, consolidating his dominance over daimyō nationwide as a candidate for Seii Taishōgun.
3. 1600Edo · KantōBy the end of 1600, the Eastern Army daimyō system was secure and Western Army forces collapsed; Ieyasu built a nationwide military-political hegemony from his Edo headquarters, laying the foundation for the Edo shogunate formally opened in 1603.