Her Wikipedia article, with a link to this image, is here. She died from epilepsy and her husband, Friedrich August II, then married Maria Anna of Bavaria. This is the same image posted before, but with a corrected title and new keywords. Also posted to the Revolutionary, Napoléonic, and Romantic Era Album here.
This portrait is almost a fashion plate showing the square neckline, ruff, puffed sleeves, and high waistline of Empire clothing hanging on in 1817. Directoire muslin is gone, replaced by silk or satin and her dress may even have a slightly expanded A-line skirt.
Keywords: 1817, Krafft, Karoline Ferdinande von Österreich, Maria Karolina Ferdinanda, Maria Karolina Ferdinande Theresia Josephine Demetria, Erzherzogin von Österreich, Prinzessin von Sachsen, Habsburg family, Wettin family, Archduchess, Princess, curly coiffure, bun, tiara, square neckline, lace neckline ruff, quarter length full sleeves, jeweled waist band, Empire low waistline, close skirt, necklace