two small islands in the Mediterranean, off the coast of France, about 23 miles from the shore at Cannes, and belonging to the department of Var. The larger one, called Ste Marguerite, is well wooded, and is defended by a fort which for many years was the prison of the mysterious "Man of the Iron Mask." The other islet, called St Honorat, contains the remains of a fortified convent. The former was the Leron, and the latter the Lerins of the Romans.