Administration office was changed into Administrative Borad and he remained in the position of chief officer when MINAMOTO no Yoritomo became a court noble on June 4 (different theories; administration office and Administrative Borad coexisted, and he assumed the position of chief officer in addition to another position in Administrative Borad).
4月27日、源頼朝公卿に列するに伴い、公文所を政所と改め、引き続き別当留任（異説として公文所・政所の両所並存・別当兼務説がある）。