Norimune was succeeded by Muramune however, who found himself in discord with the independently minded Yoshimura AKAMATSU and, in 1518 departed to his Mitsuishi-jo Castle.
則宗の跡を継いだ村宗であったが、自立を図る赤松義村と不和となり、永正15年（1518年）居城の三石城に退去した。