In 1482, a dispute concerning the legitimate line of Nichiren sect occurred and shuron (discussion about religious theories) was held at Kiyosu-jo Castle in order to settle it.
文明14年（1482年）、日蓮宗の正統を巡る争いが起き、その混乱を収めるため清洲城内で宗論が行なわれた。