Louis, Duke of Brittany was Heir Apparent of France, the second son of Louis of France, Duke of Burgundy, and Marie Adélaïde of Savoy.
The eldest surviving son of the Dauphin, he was a fils de France. Louis was born at Versailles to the Duke and... Wikipedia
Born: January 8, 1707, Palace of Versailles, Versailles, France
Died: March 8, 1712 (age 5 years), Versailles, France
Grandparents: Louis, Grand Dauphin, Maria Anna Victoria of Bavaria, Victor Amadeus II of Savoy, and more
Parents: Louis, Duke of Burgundy and Marie Adélaïde of Savoy
Aunt: Maria Luisa of Savoy
Siblings: Louis XV
Great-grandparents: Louis XIV, Philippe I, Duke of Orléans, Maria Theresa of Spain, and more