The Duchy of Orléanais (French: Duché d'Orléans) is a former royal duchy, which was created during reign of Hugh Capet by elevating the former County of Orléans. In 1498, as part of a centralisation of France under Louis XII, the duchy was dissolved and replaced by the Province of Orléanais which was informally still known as the 'Duchy of Orléanais'.