From Wikimedia.
The two Ladies are dressed much like the bride. One wears a wide hat adorned with feathers while the other wears a feathered headdress. The bride and the Lady to the right wear shallow necklaces of the kind seen in the early 1500s.
Keywords: 1829, Debret, Amelie Leuchtenberg, Princess, Empress, Beauharnais family, Bragança family, curly coiffure, hurluberlu coiffure, tiara, hair jewelry, feathered headdress, feathered hat, off shoulder vee neckline, quarter length puffed sleeves, natural waistline, close skirt, flounces, order sash, necklace, shallow necklace, earrings, bracelets, gloves, robes