Yoshimori was Samurai-dokoro betto and Kagetoki was vice minister Shoshi (Deputy Chief of the Board of Retainers); they were both supporting Noriyori and Yoshitsune who were the commanders of the army that killed the Taira clan.
義盛は侍所別当、景時は次官の所司で、各々が平家追討軍を率いる範頼、義経の補佐についていた。