Basilica of St. Louis, King of France 19th century. Bishop Joseph Rosati, who ordered the construction of the church, is interred in a vault underneath the sanctuary. Basilica of St. Louis, King of France The Basilica of Saint Louis, King of France (), formerly the Cathedral of Saint Louis, and colloquially the Old Cathedral, was the first cathedral west of the Mississippi River and until 1845 the only parish church in the city of St. Louis, Missouri. It is one of two Catholic basilicas in St. Louis, and it is named for King Louis IX of France, also the namesake for the city of St. Louis. The
Louis, Dauphin of France (son of Louis XV) Louis, Dauphin of France (son of Louis XV) Louis, Dauphin of France (4 September 1729 – 20 December 1765) was the elder and only son of King Louis XV of France and his wife, Queen Marie Leszczyńska to survive to adulthood. He had a younger brother, Philippe, who died as a toddler. As a son of the king, Louis was a "fils de France". As heir apparent, he became Dauphin of France. However, he died before ascending to the throne. Three of his sons became kings of France: Louis XVI (reign: 1774–1792), Louis XVIII (reign: 1814–1815; 1815–1824) and Charles X