In a disturbance in the Bitchu area, the Miura clan was defeated by the Mori clan, cooperated with Naoie, after which many lords of a castle under the Mimura clan went to the Mori clan for help, one of whom was Muneharu SHIMIZU.
のち直家と結んだ毛利氏により三村氏は滅ぼされ（備中兵乱）、その傘下であった城主の多くは毛利氏を頼ったが、その一人が清水宗治である。