Philippe of Lorraine, known as the Chevalier de Lorraine, was a French nobleman, descendant of the Dukes of Elbeuf, member of the House of Guise, cadet branch of the House of Lorraine. He was the renowned lover of Philippe I, Duke of Orléans, brother of Louis XIV.

Philippe II, Duke of Orléans, was a French prince, soldier, and statesman who served as Regent of the Kingdom of France from 1715 to 1723. He is referred to in French as le Régent. He was the son of Monsieur Philippe I, Duke of Orleans, and Madame Elisabeth Charlotte, Duchess of Orléans. Born at his father's palace at Saint-Cloud, he was known from birth by the title of Duke of Chartres.