In 1589, under Hideyoshi TOYOTOMI's rule, Sanesue AKITA, a descendant of the Ando clan, was termed Akita Jonosuke, and in addition the surname of his family was changed to AKITA (the Akita surname comes from Akita Jonosuke).
豊臣秀吉の治世下の1589年（天正17年）、安東氏の後裔、秋田実季は秋田城介を称するとともに秋田氏を名乗った（秋田の氏は秋田城介に由来する）。