Portrait of Madame de Rieux in Ball-Dress Holding a Mask

Madame de Rieux's portrait in ball dress, holding a mask, is among La Tour's most theatrically charged works. The masked ball was one of the defining social rituals of Rococo France — a space where rank could be temporarily suspended or subverted behind the anonymity of costume. Holding the mask while unmasked creates a deliberate double image: the sitter is simultaneously herself and the potential for concealment, present and about to disappear. The 1742 date is early in La Tour's period of Parisian celebrity, and the work's freshness and compositional invention suggest a confident young pastellist willing to push the formal conventions of the genre portrait. The Musée Cognacq-Jay in Paris — a museum of eighteenth-century art and decorative arts — is an appropriate repository for this most Rococo of his images.

Pastel on paper, with La Tour's characteristic dense surface richness. The ball dress required handling of light-reflecting satin or silk, a technical challenge pastel manages through high-key highlight strokes set against deeper shadow tones. The mask introduces an unusual object into the compositional field that La Tour handles with playful precision.