From the Christie's Web site.
The Duchess' hurluberlu coiffure and the wing-like epaulette panels date this to the early- to middle-1830s. She wears a turban adorned with a lace veil.
Keywords: Daffinger, Duchesse de Berry, Princess, Duchess, Borbone family, Bourbon family, French, hurluberlu coiffure, turban, veil, lace, epaulettes, off shoulder vee neckline, bertha, necklace, earrings, brooch, clasps