Disguised as a faun, Jupiter approaches the sleeping beauty Antiope, daughter of the King of Thebes, and uncovers her.

The practice of painting portrait miniatures in enamels developed out of the decorative work of goldsmiths and watchmakers in the French cities of Blois, Châteaudun and Paris. Portrait plaques had been made in the enamelling workshops of Limoges in central France during the 16th century, but in the 1630s, Jean Toutin adapted existing techniques to make the subtle colouring and delicate detail of enamel miniatures possible. Small objects like watches or snuffboxes were ideally suited to this technique and many were decorated with portraits and mythological or allegorical scenes. Artists throughout Europe continually refined their approaches to painting enamel portraits. While 17th century enamellers used a very fine stipple to create light and shade in their miniatures, artists in the 18th century began to use larger brushstrokes for a more fluid effect.

Sir Arthur Gilbert and his wife Rosalinde formed one of the world's great decorative art collections, including silver, mosaics, enamelled portrait miniatures and gold boxes. Arthur Gilbert donated his extraordinary collection to Britain in 1996.