The Church of St. Louis of the French (Italian: San Luigi dei Francesi, French: Saint Louis des Français, Latin: S. Ludovici Francorum de Urbe) is a Roman Catholic church in Rome, not far from Piazza Navona. The church is dedicated to the Virgin Mary, to St. Denis the Areopagite and St. Louis IX, king of France. The church was designed by Giacomo della Porta and built by D...