Louis Philippe Joseph d'Orléans, Duke of Orléans (Louis Philippe Joseph d'Orléans, duc d'Orléans) (Château de Saint-Cloud, France, 13 April 1747, -- Paris, 6 November 1793), was a member of a cadet branch of the House of Bourbon, the ruling dynasty of France. He actively supported the French Revolution and adopted the name Philippe Égalité, but was nonetheless guillotined during the Reign of Terror.