Original: The Dauphin of France â "strictly, The Dauphin of Viennois (Dauphin de Viennois) â" was the title given to the heir apparent to the throne of France from 1350 to 1791, and from 1824 to 1830.
Simplified: The Dauphin was the heir apparent to the throne of France from 1350 - 1791, and from 1824 - 1830.