Altarpiece unclear. Altarpieces can still broadly be divided into two types, the "reredos", which signifies a large and often complex wooden or stone altarpiece, and the "retable", an altarpiece with panels either painted or with reliefs. Retables are placed directly on the altar or on a surface behind it; a reredos typically rises from the floor. Retable-type altarpieces are often made up of two or more separate panels created using a technique known as panel painting. The panels can also display reliefs or sculpture in the round, either polychrome or un-painted. It is then called a diptych, triptych or polyptych for
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