Princess Maria Amalia of Bourbon-Two Sicilies (1818–1857) by ?
Her Wikipedia article, including this image, is here.
Princess Maria Amalia wears a straight and simple "Victorian" coiffure and a pre-cage crinoline dress in this portrait.
Keywords: Maria Amalia (1818-1757), Borbone family, Borbón family, Princess, straight coiffure, jacket bodice, high neckline, collar, lace, buttons, three quarter length full flared over-sleeves, long full under-sleeves, full skirt, cameo