Under Masakado, who named himself the new emperor at the Kozuke provincial office, Prince Okiyo, who became the most influential person at that time, issued the Jimoku (ceremony for appointment of officials) in his own right with FUJIWARA no Harumochi, being appointed as the Assistant Governor of Kazusa Province.
上野国府で新皇を僭称した将門の下、時の主宰者となった興世王は藤原玄茂と共に独自に除目を発令し、自らは上総国介に任命される。