Siege of Osaka Castle

June 4, 1615

Ieyasu, now retired but watchful, besieged the last refuge of his rivals, the Toyotomi. After months of mines, cannonades, and treachery, Osaka Castle fell and was burned. Toyotomi Hideyori and his mother committed suicide in the flames. Tokugawa supremacy over Japan was complete and uncontested, and the great age of civil war that had convulsed the archipelago was finished.