From thepeerage.
This portrait may date to about when Maria Isabel became Queen in 1825 based on the waistline and coiffure.
Keywords: Maria Isabella of the Two Sicilies, Borbón family, Borbone family, Princess, Queen, hurluberlu coiffure, bandeau, feathered headdress, off shoulder sweetheart neckline, quarter length puffed sleeves, belt, jeweled buckle, natural high waistline, necklace, earrings, brooch