Imperial diptych Imperial diptych In Late Antiquity, an imperial diptych is a theoretical type of ivory diptych, made up of two leaves of five panels each and each with a central panel representing the emperor or empress. They are so-named in contrast to consular diptychs. They were produced as unique examples, whereas each consular diptych was produced in large numbers to offer to the emperor on certain occasions, principally a nobleman's entry to the consulship. No complete example of an imperial diptych survives and so their existence is contested. The ivories specialist R. Delbrück has theorised that the 19 surviving fragments of
Burg Weiler Altarpiece of Trier, Saint Apollonia, Saint Barbara, Catherine of Alexandria, Lawrence of Rome, Saint Sebastian, Saint Maurice, and an angel. Burg Weiler Altarpiece The Burg Weiler Altar Triptych (Altarpiece with the Virgin and Child and Saints) or Master of the Burg Weiler Altar is a 1470 religious painting. It is in the collection of the Metropolitan Museum of Art. The altarpiece is Middle Rhenish, made in North Württemberg (now Baden-Württemberg). It was originally in the chapel of the castle of Burg Weiler near Heilbronn. The triptych is oil on wood of three parts, with gold ground. The left and right panels