On 5 May 1778, Dr. Lassonne, Marie Antoinette's private physician, confirmed her pregnancy. On 19 December 1778, the Queen gave birth to a daughter, who was named Marie-Thérèse Charlotte de France and given the honorific title Madame Royale. The birth of a girl came as a relief to the Count of Provence, who kept his position as heir to Louis XVI, since Salic Law excluded women from acceding to the throne of France. However, Louis Stanislas did not remain heir to the throne much longer. On 22 October 1781, Marie Antoinette gave birth to the Dauphin Louis Joseph. Louis Stanislas and his brother, the Count of Artois, served as godfathers by proxy for Joseph II, Holy Roman Emperor, the queen's brother. When Marie Antoinette gave birth to her second son, Louis Charles, in March 1785, Louis Stanislas slid further down the line of succession.