From Wikimedia.
This portrait shows that panniers could almost become carnivorous, or at least bulky. Her dress is simple for a French dress of the era.
Keywords: 1774, Lepeintre, Louise Marie Adélaïde de Bourbon, Princesse de Lamballe, Bourbon family, Orléans family, Savoia family, Este family, Princess, Duchess, French, high straight coiffure, ribbon headdress, square neckline, bertha, stomacher, bows, revers, elbow length close sleeves, panniers, under-skirt, flounces