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 she was more capable of business than any man. Although she never came to like Blenheim Palace – describing it as "that great heap of stones" – she became more enthusiastic about its construction and wrote to the Duke of Somerset about the new waterworks: "I believe it will be beautiful. The Canal and Bason (which is already don[e]) look very fine. There is to be a lake & a cascade ... which I think will bee a great addition to the place". The Duchess of Marlborough fought against anything she thought was undue extravagance. She wrote to the Duke