Louis-Philippe, also called (1793–1830) Louis-Philippe, duc d’Orléans, byname Citizen King, French Roi Citoyen, (born October 6, 1773, Paris, France—died August 26, 1850, Claremont, Surrey, England), king of the French from 1830 to 1848; having based his rule on the support of the upper bourgeoisie, he ultimately fell from power because he could not win the allegiance of the new industrial classes.