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
Trinity Altarpiece Trinity Altarpiece The Trinity Altarpiece, also known as the Trinity Altar Panels, is a set of four paintings in oil on wood thought to have been commissioned for the Trinity College Kirk in Edinburgh, Scotland, in the late fifteenth century. The work is attributed to the Flemish artist Hugo van der Goes and probably represents the inner and outer panels of the wings of a triptych. The presumed central panel is lost. The painting in the church was described as a "burd" on 17 May 1516 when John Stewart, Duke of Albany made an offering at the high altar on