The Church of Saint-Séverin is a Roman Catholic church in the Latin Quarter, located on the lively tourist street Rue Saint-Séverin. It is one of the oldest churches that remains standing on the Left Bank, and it continues in use as a place of worship. Séverin of Paris, a devout hermit, lived on the banks of the River Seine during the first half of the fifth century. The oratory which was built over his tomb became the site of a small Romanesque church which was built around the 11th century. As a result of the rapidly expanding community on the Left Bank, it was decided a larger church was required.