石山本願寺
Nobunaga's enemies were not only other "daimyōs" but also adherents of a Jōdo Shinshū sect of Buddhism who attended Ikkō-ikki, led by Kennyo. He endured though Nobunaga kept attacking his fortress for ten years. Nobunaga expelled Kennyo in the eleventh year, but, through a riot caused by Kennyo, Nobunaga's territory took the bulk of the damage. This long war was called Ishiyama Hongan-ji War.