Frances Villiers, Countess of Jersey Frances Villiers, Countess of Jersey Frances Villiers, Countess of Jersey ("née" Twysden; 25 February 1753 – 23 July 1821) was one of the more notorious of the many mistresses of King George IV when he was Prince of Wales, "a scintillating society woman, a heady mix of charm, beauty, and sarcasm". Through marriage she belonged to the Villiers family. She was born Frances Twysden, in London, second and posthumous daughter of The Rt Rev. Dr Philip Twysden (c.1714–52), Church of Ireland Lord Bishop of Raphoe (1746–1752; died 2 November 1752, allegedly shot while attempting to rob a stagecoach near London),
Villiers family sons to inherit that title. Sir Edward Villiers's eldest son, William († 1643), thus succeeded as second Viscount Grandison in 1630. He was the father of Barbara Villiers († 1709), one of the mistresses of King Charles II, by whom she had five children, and who was created Duchess of Cleveland in 1670. Sir Edward Villiers's second and third sons, John († c.1661) and George († 1699), succeeded as 3rd and 4th Viscounts Grandison, while the fourth son, Sir Edward Villiers († 1689), was father of Edward Villiers († 1711), who was created both "Baron Villiers" and "Viscount Villiers" in