Winged altarpiece Winged altarpiece A winged altarpiece (also "folding altar") or winged retable is a special form of altarpiece (reredos, occasionally retable), common in Central Europe, in which the fixed shrine or "corpus" can be enclosed by two (triptych), four (pentaptych) or more (polyptych) movable wings. The technical terms are derived from : "trís" or "triple"; πέντε: "pénte" or "five"; πολύς: "polýs" or "many"; and πτυχή: "ptychē" or "fold, layer". Because the winged altar can display different scenes on weekdays, Sundays or holidays, based on the motifs and type of decoration (painted panels or reliefs), it is also called a liturgical altar.
Perugia Altarpiece panels portray scenes of the "Life of St. Nicholas" <br> Perugia Altarpiece The Perugia Altarpiece (Italian: "Pala di Perugia") is a painting by the Italian early Renaissance painter Fra Angelico, housed in the Galleria Nazionale dell'Umbria of Perugia, Italy. The painting was executed for the St. Nicholas Chapel in the Basilica of San Domenico, Perugia. In the early 19th century, it was split and partially dispersed, and some of the predella panels were acquired by the Pinacoteca Vaticana. In Perugia were executed copies of these panels, enclosed into a neo-Gothic frame. The polyptych also included some small depictions of saints,