The Ikki would form and appear throughout other parts of Japan, such as Kaga Province, where a sect of the Jōdo Shinshū Buddhists, the Ikkō, started their own revolt during the Ōnin War after being enlisted by one of Kaga's most prominent warlords, Togashi Masachika. The Ikkō, who had a complex relationship with the Jōdo Shinshō leader Rennyo, appealed to the common peasants in their region, and inevitably formed the Ikkō-ikki. By 1488 the Ikkō-ikki of Kaga Province overthrew Masachika and took control of the province. After this they began building a fortified castle-cathedral along the Yodo River and used it as their headquarters.