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
Fano Altarpiece the portico and the oval in a valley. Fano Altarpiece The Fano Altarpiece is a painting by the Italian Renaissance artist Pietro Perugino, executed in 1497, and housed in the church of Santa Maria Nuova, Fano, central Italy. It also includes a lunette with a "Pietà" and several predella panels. Perugino had already painted an "Annunciation" in 1488-1490. Several scholars have supposed that a young Raphael collaborated on the predella. The Madonna is portrayed on a luminous landscape of hills, on a high throne; in front of her is a pedestal with, on it, a mystic vase, and featuring the