Altarpiece.—A picture of some sacred subject painted on the wall or suspended in a frame behind the altar, or a group of statuary on the altar. In the Middle Ages, instead of a picture or group, the altar-piece consisted in some churches of embossed silver or gold and enamelled work set with jewels. Sometimes the picture was set on the altar itself.
The Catholic Encyclopedia
Altarpiece
1 section
Charles G. Herbermann and others (editors)
Transcribed from a dated scan; artifacts may remain. Edition notes
Trans. None. Written in English by the contributors whose signatures close each article., The Catholic Encyclopedia, An International Work of Reference on the Constitution, Doctrine, Discipline, and History of the Catholic Church, in fifteen volumes, 1907. Public domain.