There is another version of this portrait dated ca. 1656 on Wikimedia.
From the lost gallery's photostream on flickr.
Princess Claire's dress is adorned with three columns of pearls radiating from the point of her vee waistline that are supplemented by the rows of pearls lining the openings of her over-sleeves.
Keywords: 1656, Beaubrun - Charles, Claire Clemence de Maillé-Brézé, Brézé family, Bourbon family, curly coiffure, off shoulder scoop neckline, modesty piece, scoop neckline, bertha, elbow length full over-sleeves, three quarter length under-sleeves, back-flared cuffs, girdle, vee waistline, full skirt, necklace, jeweled neckline, brooch, jeweled bodice, jeweled sleeves, clasps, robes