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
Pesaro Altarpiece (Bellini) and so were created separately and only joined together later. This refers to Venetian funerary monuments of the same era, such as doge Pasquale Malipiero's monument (designed by Pietro Lombardo for Santi Giovanni e Paolo) and Mantegna's San Zeno Altarpiece. Bellini further developed his use of the frame as an integral part of the painting in later works such as the San Giobbe Altarpiece and the Frari Triptych. Pesaro Altarpiece (Bellini) The Pesaro Altarpiece (Italian: "Pala di Pesaro") is an oil on panel painting by Giovanni Bellini, dated to some time between 1471 and 1483. It is considered as one