服部正成
Imagawa Ujizane, the son of the late Imagawa Yoshimoto, held Kakegawa castle at the time that it was besieged by Hattori Hanzō under the command of Tokugawa Ieyasu. After a long battle, negotiations began, and Ujizane agreed to surrender the castle in return for the support of Ieyasu in regaining his former territory in Suruga province.