A little Paris for you. Le Concierge, the first Paris palace for the Kings of France from the time of St. Louis with La Chapelle on the left, which has exquisite stained glass windows and used to house the holy relics of Christ brought back by Louis from the fourth Crusade. Marie Antoinette left the Concierge, which became her prison after the execution of Louis XVI, on her way to the guillotine.