His father, Masatsugu, came from a powerful local clan in Kobori-mura, Sakata-gori in Omi Province (present-day Nagahama City, Shiga Prefecture) and was a retainer and relative of Nagamasa ASAI.
父・正次はもともと近江国坂田郡小堀村（現・滋賀県長浜市）の土豪で、浅井長政の家臣であり縁戚でもあった。