Nobunaga Oda 

Nobunaga Oda He lived a life of continuous military conquest, eventually conquering a third of Japan before his death in a 1582 coup d'etat, in which Akechi Mitsuhide, one of his generals, forced Nobunaga to commit seppuku. Akechi Mitsuhide quickly declared himself master over Nobunaga's domains, but was quickly defeated by Toyotomi Hideyoshi. His successors were Toyotomi Hideyoshi and Tokugawa Ieyasu.