He was of a branch family of the Akamatsu clan in Harima Province and initially served Shigeaki WATARASE (a son-in-law of his father Noriyori and an older brother-in-law of Toyouji) as the chief retainer.
播磨国赤松氏の庶流で、はじめ渡瀬繁詮（父・則頼の女婿で豊氏の義兄）の家老を務めていた。