Oratoire du Louvre

The Église réformée de l'Oratoire du Louvre, is an historic Protestant church located at 145 rue Saint-Honoré – 160 rue de Rivoli in the 1st arrondissement of Paris, across the street from the Louvre. It was founded as a Catholic church in 1611, became the royal chapel of France and under Louis XIII, and then became a Protestant Church under Napoleon I in 1811. It is now a member of the United Protestant Church of France.

Source: Wikipedia