Konishi Yukinaga
In 1587, Toyotomi Hideyoshi started to invade Kyūshū in his war to unify Japan and reached Kumamoto on April 16. He gave letters of reassurance of the possession of land to 52 persons in Kumamoto, and gave Sassa Narimasa the Province of Higo. Toyotomi Hideyoshi ordered that the measurements of land should not be examined in the following three years. However, Sassa Narimasa could not observe the order and conflict started; Toyotomi Hideyoshi ordered the groups of samurai in Higo be destroyed. Sassa Narimasa was responsible for this conflict and he was ordered to commit seppuku. On the following day, Toyotomi Hideyoshi gave the northern half of Higo Province to Katō Kiyomasa and the southern half to Konishi Yukinaga. Sagara clan in Hitoyoshi lost Yatsushiro and Ashikita, but finally the possession of Hitoyoshi was reassured. Five groups of samurai in Amakusa resisted Konishi Yukinaga, but were finally defeated.