Hirofusa SUE, his father, had succeeded Hiroatsu MIGITA of the same clan but returned to the original family name of Sue because Hiromasa SUE, his older brother, was killed in battle, and transferred the Migita family to his son Hiroaki in 1465.
父陶弘房は同族の右田弘篤の跡を継いでいたが、その兄陶弘正が戦死したため、本性の陶氏に戻り、寛正6年（1465年）にその子弘詮に右田家を継がせた。