The 1569 siege of Kakegawa was one of many battles fought by the Imagawa clan against various invaders during Japan's Sengoku period. Imagawa Ujizane, the son of the late Imagawa Yoshimoto, held Kakegawa castle at the time that it was besieged by Hattori Hanzo 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.