Dauphin of France, originally Dauphin of Viennois, was the title given to the heir apparent to the throne of France from 1350 to 1791, and from 1824 to 1830. The word dauphin is French for dolphin and was the hereditary title of the ruler of the Dauphiné of Viennois. While early heirs were granted these lands to rule, eventually only the title was granted.
Image: Charles V France
Image: Young Charles VI of France
Image: Charles, 6th Dauphin
Image: Louis de Guyenne, dauphin of France
An heir apparent or simply heir is a person who is first in an order of succession and cannot be displaced from inheriting by the birth of another person. A person who is first in the current order of succession but could be displaced by the birth of a more eligible heir is known as heir presumptive.
Throngs before the Imperial Palace in Japan awaiting the appearance of the Crown Prince Hirohito for the recent proclamation of his official recognition as the heir apparent to the Japanese Imperial Throne – New York Times, 1916.