From the Bonhams Web site.
This is another version of Lawrence's 1816 portrait.
Keywords: 1816, Lawrence - Thomas, Elizabeth Mary Leveson-Gower, Marchioness of Westminster, Countess Grosvenor, Leveson-Gower family, Grosvenor family, Marquise, British, curly coiffure, bun, partlet, sweetheart neckline, bodice, square neckline, ruff, dual upper puffed sleeves, arm bands, Empire waistline, waist band, close skirt, pin