In July 1466, at the recommendation of his aides including Sadachika ISE and Shinzui KIKEI, Yoshimasa suddenly deprived Yoshikado SHIBA of the Shiba Buei family headship and bestowed it on Yoshitoshi SHIBA.
1466年（文正元年）7月、突然、義政は側近の伊勢貞親・季瓊真蘂らの進言で斯波武衛家の家督を斯波義廉から取り上げ斯波義敏に与えた。