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
Camilla, Duchess of Cornwall wife of William Keppel, 7th Earl of Albemarle, and their son was the Hon. George Keppel (maternal great-grandfather of Camilla). Through Sophia, Camilla is descended from 17th-century French colonists Zacharie Cloutier and Jean Guyon, who founded some of the principal families of Quebec City. She is also descended from several American Loyalists through Sophia such as Ephraim Jones, born in Massachusetts in 1750, who fought with the British during the American Revolution, was captured at the Battle of Saratoga, and later settled in Upper Canada. His daughter Sophia married John Stuart Jr. (born 1777, New York), the son of Rev