The title was abolished by the Constitution of 1791, which made France a constitutional monarchy. Under the constitution the heir-apparent to the throne (Dauphin Louis-Charles at that time) was restyled Prince Royal (a Prince of the Blood retitled prince français), taking effect from the inception of the Legislative Assembly on 1 October 1791. The title was restored in potentia under the Bourbon Restoration of Louis XVIII, but there would not be another Dauphin until after his death. With the accession of his brother Charles X, Charles’ son and heir Louis-Antoine, Duke of Angoulême automatically became Dauphin.With the removal of the Bourbons the title fell into disuse, the heirs of Louis-Philippe being titled Prince Royal. After the death of Henri, comte de Chambord, Carlos, Duke of Madrid, the heir of the legitimist claimant, Juan, Count of Montizón, made use of the title in pretense, as have the Spanish legitimist claimants since.