He was the sixth head of Bando-Heishi (Taira clan) who was the descendants of Emperor Kanmu, and his son Kotaro fumikuni (小太郎文国) became the progenitor of the Shinoda clan.
桓武天皇系坂東平氏6代目当主であり、信田氏の始祖で子の小太郎文国は信田氏を称した。