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 that are typically used to refer to them. In Scotland the couple use the title Duke and Duchess of Rothesay. Since the title of Duke of Cornwall can be held only by an heir-apparent who is also the eldest son of the monarch, no woman can be Duchess of Cornwall in her own right. However, this may change now that proposals to change the rules of succession are completed. The first Duchess of Cornwall was Joan "The Fair Maid of Kent", who, in October 1361, married Edward, the Black Prince. Catherine of Aragon was also Duchess of Cornwall through her