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.
Portrait Diptych of Dürer's Parents as a journeyman painter. They were created either as pendants, that is conceived as a pair and intended to hang alongside each other, or diptych wings. However this formation may have been a later conception; Barbara's portrait seems to have been executed some time after her husband's and it is unusual for a husband to be placed to the viewer's right in paired panels. His father's panel is considered the superior work and has been described as one of Dürer's most exact and honest portraits. They are among four paintings or drawings Dürer made of his parents, each of which