Carlota Joaquina of Spain by ?
From Wikimedia.
The engraver may have used the Sequeira portrait seen in the last image as a starting point and taken some artistic license with it.
Keywords: Borbón family, Bragança family, Princess, Queen, Portuguese, straight coiffure, bandeau, jeweled headdress, bateau neckline, bertha, lace, quarter length close sleeves, ruffles, waist band, Empire low waistline, close skirt, order sash, necklace, earrings, cameo, wrap