Diptych triptych form, with two outer panels that could be closed across the main central representation. They are one type of the multi-panel forms of painting known as "polyptychs". The diptych was a common format in Early Netherlandish painting and depicted subjects ranging from secular portraiture to religious personages and stories. Often a portrait and a Madonna and Child had a leaf each. It was especially popular in the 15th and 16th centuries. Painters such as Jan van Eyck, Rogier van der Weyden, Hans Memling and Hugo van der Goes used the form. Some modern artists have used the term in
Fano Altarpiece the portico and the oval in a valley. Fano Altarpiece The Fano Altarpiece is a painting by the Italian Renaissance artist Pietro Perugino, executed in 1497, and housed in the church of Santa Maria Nuova, Fano, central Italy. It also includes a lunette with a "Pietà" and several predella panels. Perugino had already painted an "Annunciation" in 1488-1490. Several scholars have supposed that a young Raphael collaborated on the predella. The Madonna is portrayed on a luminous landscape of hills, on a high throne; in front of her is a pedestal with, on it, a mystic vase, and featuring the