Louis, Dauphin of France (1729–1765)

Louis, Dauphin of France was the elder and only surviving son of King Louis XV and Queen Marie Leszczyńska. As the 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 would go on to be King: Louis XVI, Louis XVIII and Charles X.