Altarpiece two, three, and multiple panels respectively. In the thirteenth century each panel was usually surmounted with a pinnacle, but during the Renaissance, single panel, or "pala", altarpieces became the norm. In both cases the supporting plinth, or "predella" often featured supplementary and related paintings. If the altar stands free in the choir, both sides of the altarpiece can be covered with painting. The screen, retable or reredos are commonly decorated. Groups of statuary can also be placed "on" an altar. A single church can furthermore house several altarpieces on side-altars in chapels. Sometimes the altarpiece is set on the altar
Cervara Altarpiece panels were re-united at the Palazzo Bianco in autumn 2005. Cervara Altarpiece The Cervara Altarpiece or Cervara Polyptych was an oil-on-oak-panel altarpiece painted by the Flemish painter Gerard David early in the 16th century for the high altar of Cervara Abbey in Liguria, Italy. It was commissioned by the Genoese nobleman Vincenzo Sauli on 7 September 1506, as dated in a 17th-century document - Sauli's name is painted above the Virgin's feet in the central panel. David painted it in Bruges and it was installed in the Abbey in 1507. It was originally formed of seven panels, which were divided