Louise de Kérouaille, Duchess of Portsmouth 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 Richmond, she is ancestress of both wives of Prince Charles: Lady Diana Spencer and Camilla Shand. Louise was the daughter of Guillaume de Penancoët, Seigneur de Kérouaille (d. 1690) and his wife (married on 27 February 1645) Marie de Ploeuc de Timeur (d. January 1709), paternal granddaughter of René de Penancoët, Seigneur de Kérouaille et Villeneuve, and his wife (married
Duchess of Cornwall Duchess of Cornwall and York" from 22 January to 9 November 1901. In both cases they were known by the title for only a few months between their respective fathers-in-law's accession to the throne and their husband's creation as Prince of Wales. Prior to the marriage of the Prince of Wales and Camilla Parker Bowles, it was stated that she would be styled Her Royal Highness the Duchess of Cornwall. She does not use the title Princess of Wales, because it is still popularly associated with the former wife of the Prince of Wales, Diana, Princess of Wales. It is