後陽成天皇
Prince Katahito became emperor when his grandfather abdicated. The succession ("senso") was considered to have been received by the new monarch; and shortly thereafter, Emperor Go-Yōzei is said to have acceded ("sokui"). The events during his lifetime shed some light on his reign. The years of Go-Yōzei's reign correspond with the start of the Tokugawa shogunate under the leadership of Tokugawa Ieyasu and Tokugawa Hidetada.