This is Wikipedia's image of her.
This shows some details of Leticia Bonaparte's jacket and elbow-length sleeves not seen in the last photo.
Keywords: Leticia Bonaparte, Princess, Duchess, Bonaparte family, Savoia family, curly coiffure, chemisette, high enclosing neckline, vest bodice, lapels, slashed elbow length full sleeves, lace, earrings, pin, brooch