After FUJIWARA no Hidehira died, Oshu-Fujiwara was defeated by MINAMOTO no Yoritomo and when Kamakura bakufu (Japanese feudal government headed by a shogun) was established, Mutsu no kami became the honorable position served by senior vassals such as the Hojo clan or the Adachi clan.
藤原秀衡の死後、奥州藤原氏は源頼朝に討たれ、鎌倉幕府が成立すると、陸奥守は北条氏や安達氏など有力御家人が務める栄職とされた。