From Wikimedia.
Young Duchess Augusta of Cambridge wears a dress showing strong Empire influence in this 1818 Beechey portrait. Her coiffure shows traces of hurluberlu influence as well as a large mass behind her tiara. Rouleaux appear frequently in the fashion plates of the era, but not in these albums. Augusta's dress has a narrow rouleau above a wide lace flounce.
Keywords: 1818, Beechy, Augusta Wilhelmina Louisa, Augusta of Cambridge, Augusta of Hesse-Kassel, Princess, Duchess, Hesse-Kassel family, Hanover family, curly coiffure, tiara, square décolletage, bertha, lace, quarter length full sleeves, cuffs, waist band, Empire waistline, A-line skirt, maxi-length skirt, rouleau, flounces, shoes, necklace, earrings, bracelets, robes, regalia