It seems that in the late Kamakura period and the period of the Northern and Southern Courts (Japan), Sekkan-ke and temples for both of whom existence of the emperor was indispensable, brought jointly sokuikanjo into the enthronement ceremony for their own survival.
鎌倉時代後半から南北朝時代にかけて、天皇の存在が互いに不可欠であった摂関家と寺院勢力は、自らの存続をかけて共同で即位儀礼の中に即位灌頂を持ち込んだものと見られる。