Marie-Therese-Charlotte (1778-1851) was the eldest child of Marie Antoinette and King Louis XVI. In childhood, she was known according to court custom as Madame Royale. She survived the French Revolution and was allowed to leave France. In 1799, she married her cousin Louis-Antoine, duc d'Angoulême, son of her father's younger brother, the comte d'Artois. After her father-in-law became king as Charles X, Marie-Therese and her husband were dauphine and dauphin; this ended when Charles X abdicated in 1830.