Île Sainte-Marguerite /

The Île Sainte-Marguerite is the largest of the Lérins Islands, about half a mile off shore from the French Riviera town of Cannes. The island is approximately 3km in length (East to West) and 900m across. The island is most famous for its fortress prison (the Fort Royal), in which the so-called Man in the Iron Mask was held in the 17th century. The island is first known to have been inhabited during Roman times, when it was known by the name Lero. The island was probably renamed in medieval times by crusaders, who built a chapel to Saint Margaret of Antioch on the island. In the 14th century, probably due to the writings of Raymond Féraud, the island became associated with a fictional Sainte Marguerite, sister to Saint Honoratus, founder of the monastery on the neighbouring Île Saint-Honorat. According to legend, Sainte Marguerite led a community of nuns on the island which was named after her. In 1612, ownership of the island passed from the monks of Saint-Honorat to Claude de Lorraine, Duke of Chevreuse. Shortly after, construction of a fort on the island (to become the Fort Royal) began.