Philip IV of France, also known as Philip the Fair, was the King of France from 1285 to 1314. He is known for his efforts to centralize royal power and strengthen the monarchy. Philip IV engaged in conflicts with the Papal States and the Knights Templar, leading to significant political and religious changes in France. During his reign, Philip IV implemented various reforms, including the establishment of the Estates-General, which was an assembly representing different social classes. His reign also saw the expansion of French territory and influence, setting the stage for future developments in the Hundred Years' War.