In June 1555, hearing that his younger brother Hidetaka ODA was mistakenly killed by Saizo SUGA who was a vassal of his uncle Nobutsugu ODA, he became infuriated and he burnt down castle town of Moriyama-jo Castle (Owari Province), which was residence of Nobutsugu.
同年6月、弟織田秀孝が叔父織田信次の家臣・洲賀才蔵に誤殺されたことを聞いた達成は激怒し、信次の居城・守山城(尾張国)の城下を焼き払った。