Recto: The saint is shown as a full-length figure positioned under an arch with renaissance ornamentation. This architectural element is repeated on all the panels open at this stage. She is turned to the centre and wears an elaborate red dress with brocade edging. She holds the wheel of martyrdom and a sword in her hands. Her head is framed by a transparent halo.
Verso: The panel is part of an annunciation scene that extends over the two central panels when the altarpiece is closed. The curly-headed angel enters the Virgin's chamber from the right and raises his finger in blessing. The first Latin words of greeting are written on a sheet in his left hand. This is visible upside-down for the viewer. The long textile bands of a curtain and the Virgin's robe visible on the left panel of the annunciation scene extend over this panel and link both panels to a unit.
[Görres, cda 2015]