The Mérode Altarpiece is a triptych by the Early Netherlandish painter Robert Campin, although believed by some to be by a follower, probably copying an original by Campin. The painting is attributed by the Metropolitan Museum of Art to "Robert Campin and assistant". It was created after 1422, likely between 1425 and 1428.
The triptych is Campin's best known work, helped by the charm of the domestic setting and cityscape.
The piece is a hinged triptych, or three part panel. It was probably commissioned for private use, as the central panel is a relatively small 64 x 63 cm and each wing measures 65 x 27 cm. The portraits of the donors are in the left panel; the figure of the female donor, and the servant behind her, appear to have been added to the painting after completion by a different artist, perhaps after the donor married. They are identifiable as bourgeoisie from nearby Mechelen who are documented in Tournai in 1427, by the coats-of-arms in stained-glass in the window of the central panel. The central panel shows an Annunciation to Mary or, strictly, the moment before, as Mary is still unaware of the angel. A tiny figure of Christ, holding a cross, flies down towards Mary, representing her impregnation by God. An unusual scene of Saint Joseph at work as a carpenter occupies the right-hand panel. A further unusual feature is that although Mary and Joseph do not marry until after the Annunciation, here they are shown apparently living together at that point.
The work is at The Cloisters, a branch of the Metropolitan Museum of Art in New York. There is another version of the central panel in Brussels, which may represent the original version by Campin. The work was owned by the aristocratic Belgian Arenberg and Mérode families before reaching the art market.