St John Altarpiece Reed believes the similarities so pronounced that it is highly probable that the two were intended to hang together at the Miraflores monastery. St John Altarpiece The St John Altarpiece (German - "Johannesaltar", "Johannestafel" or "Johannesretabel") is a c. 1455 oil-on-oak wood panel altarpiece by the Early Netherlandish painter Rogier van der Weyden, now in the Gemäldegalerie, Berlin. The triptych is linked to the artist's earlier "Miraflores Altarpiece" in its symbolic motifs, format and intention. The panels show – from left to right – the birth of Saint John, the baptism of Christ by John in Jordan, and the beheading
Saint Peter Martyr Altarpiece testimony) also mention a second altarpiece by the artist in the same church, also dating to 1476, now known as the "Saint Peter Martyr Altarpiece"'. It is therefore theorised that the altarpieces were both dismantled during rebuilding of the church in 1776, then sold to the antiquarian Grossi who sold all the panels separately and grouped some of them into the altarpiece that Cardinal Zelada bought from him. Federico Zeri and Rodolfo Pallucchini then joined the altarpieces together, initially referring to the first (the high altarpiece), the "Pietà" in the Metropolitan Museum, and then to the "Madonna" in the Museum