Louise de Kérouaille, Duchess of Portsmouth died in Paris on 14 November 1734, aged 85. Some of Louise's descendants, Diana, Princess of Wales, Camilla, Duchess of Cornwall, Sarah, Duchess of York and Princess Alice, Duchess of Gloucester, would eventually play major roles in the lives of later princes of the United Kingdom: Charles, Prince of Wales, Andrew, Duke of York and Prince Henry, Duke of Gloucester. Louise de Kérouaille, Duchess of Portsmouth Louise Renée de Penancoët de Kérouaille, Duchess of Portsmouth (September 1649 – 14 November 1734) was a mistress of Charles II of England. Through her son by Charles II, Charles Lennox, 1st Duke of
Sarah Churchill, Duchess of Marlborough was now his heir apparent. In 1702, King William III died, and Anne became queen. Anne immediately offered John Churchill a dukedom, which Sarah initially refused. Sarah was concerned that a dukedom would strain the family's finances; a ducal family at the time was expected to show off its rank through lavish entertainments. Anne countered by offering the Marlboroughs a pension of £5000 a year, for life, from Parliament, as well as an extra £2000 a year from the Privy Purse, and they accepted the Dukedom. Sarah was promptly created Mistress of the Robes (the highest office in the royal