When Yoriie became the second Seii Taishogun (literally, "great general who subdues the barbarians", also called Shogun) after Yoritomo died, Yoshikazu became a member of the 13-person parliamentary system.
頼朝没後、頼家が二代征夷大将軍となると能員は十三人の合議制の1人に加えられた。