Musashi Province, one of the major shogun chigyo-koku (provincial fiefdom) as well as Sagami Province, were governed during the period of MINAMOTO no Yoritomo by Yoshinobu HIRAGA, a descendant of the Minamoto clan; Shigeyori KAWAGOE held a position as (acting) provincial governor as the heir of the Chichibu clan.
武蔵国は相模国と並んで主要な将軍知行国であり、頼朝の時代には源氏門葉の平賀義信が国司を務め、秩父氏の総領である留守所職は河越重頼であった。