1654-1655 Louise Christine de Savoie-Carignan by ? (location unknown to gogm)
Louise Christine de Savoie-Carignan's dress has scoop neckline, puffed sleeves, and jeweled neckline, sleeves, and bodice in this 1654-5 portrait. This looks like a Beaubrun brothers work. The Princesse de Lamballe associated with Marie Antoinette had the same name.
Her Wikipedia article is here.
Her cuffs include back-flared cuffs and forward-flared cuffs or engageantes.
Keywords: 1654, Savoia family, Princess, French, off shoulder scoop decolletage, elbow length puffed sleeves, slashed sleeves, back flared cuffs, engageantes, necklace, earrings, jeweled neckline, jeweled sleeves, jeweled bodice, full skirt, clasp, robes