Louis Jean Marie de Bourbon, Duke of Penthièvre (born 1725)

Louis Jean Marie de Bourbon was the son of Louis Alexandre de Bourbon and his wife Marie Victoire de Noailles. He was therefore a grandson of Louis XIV of France and his mistress, Madame de Montespan. From birth he was known as the Duke of Penthièvre. He also possessed the following titles: Prince of Lamballe ; Prince of Carignano; Duke of Rambouillet; Duke of Aumale (1775); Duke of Gisors; Duke of Châteauvillain; Duke of Arc-en-Barrois; Duke of Amboise; Count of Eu; Count of Guingamp. He was the father in law of Philippe Égalité.