On the occasion of succession of the AKAMATSU clan after Yoshinori AKAMATSU died in 1427, Yoshimochi tried to leave the domain to his close aide Mochisada AKAMATSU, which made Mitsusuke AKAMATSU run away from Kyoto and go down to Harima, his governing province.
1427年（応永34）には赤松義則死後の赤松氏の相続の際、所領を近習の赤松持貞に預けようとすると、赤松満祐が京を出奔して領国の播磨国へ下国する事件なども起こる。