During the period of warring states, the provincial constable Kyogoku clan was taken over its manor by the Amago clan which clashed with the Misawa clan by playing an active and central role in deporting Tsunehisa AMAGO.
戦国時代(日本)になると守護京極氏の所領を奪った尼子氏とは対立関係となり、尼子経久追放の中心として活躍した。