Career
He is a descendant of Emperor Kammu (桓武天皇) and of Taira Tadatsune (平 忠常). His father is Taira Tsunekane (平 常兼) and His mother is a daughter of Torinoumi Saburō-Tadahira (鳥海 三郎 忠衡). He built his headquarters at Inohana and laid the foundation for the government by the Chiba clan around the region.