The Duchy of Orléans was a historical territory in France, established in the late 14th century. It was named after the city of Orléans and became one of the most important duchies in the French kingdom. The duchy was often associated with the royal family, as it was granted to various members of the House of Valois. Throughout its history, the Duchy of Orléans played a significant role in French politics and culture. It was a center for the arts and learning, particularly during the reign of Louis-Philippe I, who was the last king of France and a member of the Orléans branch of the royal family.