Louis, dauphin of France (born 1729)

Louis, Dauphin of France was the elder and only surviving son of King Louis XV of France and his wife, Queen Marie Leszczyńska. As a son of the king, Louis was a fils de France. As heir apparent, he became Dauphin of France. Although he died before ascending to the throne himself, all three of his sons who made it to adulthood were to later rule France: Louis XVI, Louis XVIII and Charles X (1824–1830).