Imperial diptych offerings to the emperor. However, the fact that the Barberini ivory was almost certainly not a diptych, but some kind of imperial icon without a second panel is a serious argument against the existence of the imperial diptych type. The two panels representing the empress Ariadne, in the Bargello in Florence and the Kunsthistorisches Museum in Vienna, also belong to the hypothesied imperial diptych type. They are the only central panels of such a diptych (other than the Barberini ivory) to survive, since all other fragments of such diptychs are from side panels. Imperial diptych In Late Antiquity, an imperial
Ministry of the Imperial Household Household Office became the Imperial Household Agency (the current name), and placed under the fold of the newly created , as an external agency attached to it. In 2001, the Imperial Household Agency was organizationally re-positioned under the . The court developed a supporting bureaucracy which was exclusively focused on serving the needs of the Imperial Household . Among the "ritsuryō" officials within this ministry structure were: The deliberate redundancies at the top are features of each position in this remarkably stable hierarchic schema. Many positions would mirror the "-kyō," "-taifu," "-shō," "-jō," and "-sakan" pattern. Ministry of the Imperial