Saint-Sulpice is a station on line 4 of the Paris Métro in the Left Bank in the 6th arrondissement. The station was opened on 9 January 1910 as part of the connecting section of the line under the Seine between Châtelet and Raspail. It is named after the nearby Saint-Sulpice church, famous for its gnomon. Also nearby are the Luxembourg Palace, the Saint-Germain-des-Prés district, the rue Bonaparte and the town hall of the 6th arrondissement.