The title given to the eldest son of the French king was the Dauphin. This title originated from the province of Dauphiné in southeastern France, which was a territory that was once ruled by a Dauphin (or dolphin in English) as a symbol of his authority. The title was first used in the 14th century and was held by several future kings of France. The last person to hold the title of Dauphin was Louis-Antoine of France, who died in 1793 during the French Revolution.