Following the incident, Mitsuhide declared himself master over Nobunaga's domains, but was quickly defeated by Toyotomi Hideyoshi, who regained control of and greatly expanded the Oda holdings. Nobunaga's successful subjugation of much of Honshu enabled the later successes of his allies Hideyoshi and Tokugawa Ieyasu toward the goal of national unification by subjugating local daimyos under a hereditary shogunate, which was ultimately accomplished in 1603 when Ieyasu was granted the title of shogun by Emperor Go-Yōzei following the successful Sekigahara Campaign of 1600. The nature of the succession of power through the three daimyos is reflected in a well-known Japanese idiom: