He took part in the Battle of Kyoko-ji Temple in which Takamasa HATAKEYAMA fought Nagayoshi MIYOSHI, but Takamasa HATAKEYAMA was defeated and Kiyooki SHIMA fled.
畠山高政が三好長慶と戦った教興寺の戦いに参加したが、畠山高政は敗北し、島清興も敗走している。