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.

Monsieur Philippe I, Duke of Orléans was the younger son of King Louis XIII of France and Anne of Austria, and the younger brother of King Louis XIV. He was the founder of the House of Orléans, a cadet branch of the ruling House of Bourbon.