Crucifixion Diptych (van der Weyden) that they could be the left and center panels of a triptych, that they formed either the wings or shutters of an altarpiece, or that they were intended to decorate an organ case. The train of the Virgin's robe continues onto the right panel, which evidences that the panels were intended to lay side-by-side rather than separated (as the wings of an altarpiece would have been). Art historian E. P. Richardson proposed that they were the center panel of the lost Cambrai altarpiece (executed between 1455 and 1459), a single painting now split into two parts. Art historian Penny Howell
Annunciation (van Eyck, Madrid) Annunciation (van Eyck, Madrid) The Annunciation (sometimes Diptych of The Annunciation) is an oil on wood in grisaille painting by the Early Netherlandish artist Jan van Eyck, dated by art historians as between 1434 and 1436. The panels form a diptych, and are currently in the collection of the Museo Thyssen-Bornemisza, Madrid. The figures and iconography are very similar to those in the outer panels of van Eyck's earlier "Ghent Altarpiece" completed in 1432. However, their relative small scale suggests commission for private worship rather than public celebration. The panels show the Archangel Gabriel on the left and the Virgin