In Japan, there is a saying: "Oda Nobunaga endured hardships, Toyotomi Hideyoshi lived in relative comfort, and Tokugawa Ieyasu enjoyed prosperity." To put it more clearly, although all three generals contributed to the unification of Japan, only the last of the three—Tokugawa Ieyasu—became the shogun. From 1603 to 1867, the Tokugawa family ruled over Japan's territory, a historical period known as the Tokugawa shogunate.