 In return, he was recognized as chieftain of the Nanbu clans, and confirmed as "daimyō" of his existing holdings in the northern districts of Mutsu Province.However, Kunohe Masazane, who felt that he had a stronger claim to the title of clan chieftain, immediately rose in rebellion.With a large number of Nanbu samurai in the south serving in Hideyoshi’s forces against the Odawara Hōjō, the rebellion soon spread to many locations by 1591.