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
Crucifixion Diptych (van der Weyden) other Crucifixion paintings have been attributed to van der Weyden: Crucifixion Diptych (van der Weyden) Crucifixion Diptych — also known as Philadelphia Diptych, Calvary Diptych, Christ on the Cross with the Virgin and St. John, or The Crucifixion with the Virgin and Saint John the Evangelist Mourning — is a diptych by the Early Netherlandish artist Rogier van der Weyden, completed c. 1460, today in the Philadelphia Museum of Art. The panels are noted for their technical skill, visceral impact and for possessing a physicality and directness unusual for Netherlandish art of the time. The Philadelphia Museum of Art describes