St. Severin Church, on the left bank of the Seine, is among the most beautiful Parisian churches in the Gothic style. The church's begins in the 6th century with Severin, a very pious hermit who lived there. The small oratory in honor if Severin became a vault and then a basilica. After the destruction by the Vikings, the church was rebuilt and became a parish church during the 11th century.
Eglise Saint‐Séverin, 1, rue des Prêtres‐Saint‐Séverin, 75005 Paris, France, Google Maps