High-relief repoussé iron plate, gold and silver damascened on a gilded background, depicting Gabrielle d'Estrée (1573-1599) in a left three-quarter bust. King Henri IV's favorite wears a thick, tuyautée strawberry and an elaborate gown; her hair, curled around her forehead, is adorned with an aigrette; she is richly adorned with pearls in her hair, on her ears, around her neck and on her gown, and sports large, star-spangled jewels on her head and chest. Paris, workshop of Guillaume Dupré (Sissone, c. 1576 - Paris, 1643), first third of the 17th century H. 17.5 cm - L. 14.2 cm (attachments added to the reverse at a later date) This plate does not appear to have been made from a medal by Guillaume Dupré. The slightly three-quarter position to the left, the hair raised above the head, the pearls in the ears or on the necklaces and the star-shaped ornaments can all be found on an anonymous engraving dated 1596, or on Daniel Dumoûtier's 1599 portrait in the Bibliothèque nationale (fig. a and b). However, the technique of repoussé and damascened iron, which consisted in cold-hammering the reverse side of the plate to create strong reliefs on the front, which were then chiselled and inlaid with precious metals, was specific to armory and goldsmiths. It could only be mastered by some of the most skilled artists in the art of metalworking, such as Guillaume Dupré, the great medallist to kings and the court.