1615: The Summer Siege of Ōsaka—The Fall of the Toyotomi and the One-Castle-per-Domain Edict

1615: The Summer Siege of Ōsaka—The Fall of the Toyotomi and the One-Castle-per-Domain Edict

With its outer moats filled in under the terms of the winter truce, Ōsaka Castle stood nearly defenseless, and the Toyotomi forces sought their only chance in open battle against the Tokugawa army, but were defeated. In May, Hideyori and his mother Yodo-dono took their own lives, ending the main Toyotomi line. The shogunate soon issued the One-Castle-per-Domain edict and the Buke Shohatto code, tightly regulating daimyo fortifications and armaments and bringing the age of the Sengoku warring states to its final close.

Events this year

5/6

Tokugawa and Toyotomi Armies Clash in the Summer Siege

Tokugawa and Toyotomi forces fought a decisive battle south of Osaka Castle, where Sanada Nobushige and other Toyotomi commanders pressed toward the Tokugawa headquarters.

Sanada Nobushige・Osaka side; charged the Tokugawa headquartersTokugawa Ieyasu・Tokugawa commander in chief

5/8

Osaka Castle Falls and the Toyotomi House Ends

Osaka Castle fell, and Toyotomi Hideyori and Yodo-dono died by suicide, bringing the main Toyotomi house to an end.

Toyotomi Hideyori・Took his own life at Osaka Castle; end of the ToyotomiTokugawa Ieyasu・Tokugawa commander in chief who destroyed the Osaka sideTokugawa Hidetada・Shogun on the Tokugawa side

7/7

Laws for the Military Houses Are Promulgated

Tokugawa Hidetada assembled the daimyo at Fushimi Castle and promulgated the Laws for the Military Houses, setting principles for shogunate control over the daimyo.

Tokugawa Hidetada・Shogun who promulgated itTokugawa Ieyasu・Led the framing of institutions as retired shogun