According to her article in thepeerage, she married Field Marshal Henry William Paget, 1st Marquess of Anglesey in 1795 and divorced in 1810 after having eight children. She married Sir George William Campbell, 6th Duke of Argyll the same year. Her mother, Frances Twysden, can be seen here.
From bbc.co; image made lighter and enlarged one quarter by gogm.
Lady Caroline turns Directoire simplicity into impressive elegance with a black over-dress that shows her dazzling white ruffle and skirt to best advantage in this 1800 Hoppner portrait.
Keywords: 1800, Hoppner, Caroline Elizabeth Villiers, Lady Caroline Elizabeth Villiers, Caroline Elizabeth Paget, Catherine Elizabeth Campbell, Marchioness of Anglesey, Duchess of Argyll, Lady Hamilton, Marquise, Duchess, British, straight coiffure, headdress, under-dress, vee neckline, bertha, close skirt, over-dress, elbow length close sleeves, belt, Empire low waistline