The Probert Encyclopaedia of People

DAUPHIN

From 1370 until 1830, Dauphin was the title of the eldest son of the King of France. The title was said to be derived from the dolphin, the crest of the lords of Dauphiny. The name was assumed towards the middle of the 9th century by the lord of Dauphiny, which province was bequeathed by Humbert II to the King of France in 1349, on condition that the heir of the throne should bear the title of Dauphin of Viennois.
Research Dauphin