Beautiful Wrought Iron French Lantern. The Wrought Iron is hand forged to create these beautiful Architectural Lanterns. These French Lanterns bare the name from the city where they were used before electricity. A mythical lantern that appeared in Paris in the 19th century. Located on the River Seine, the Ile Saint Louis takes its name from King Louis IX, nicknamed Saint-Louis. These lanterns, created to illuminate the streets and the architectural details of the stone buildings, played an essential role in creating the magical atmosphere that reigns on this island in the heart of Paris.