In the Sengoku period of Japan, the adjacent Iga ikki and Kōka ikki, self-governed military confederations of ninja families in the respective regions of Iga Province and Kōka District, frequently all
Shogun Ashikaga Yoshihisa, who was wounded and defeated in 1487 at Magari by the Rokkaku clan and the Iga–Kōka alliance. His wounds might have contributed to his early death in 1489.