"A LANDMARK FOR SHIPPING"
This island, originally called “l’Islet” - the islet, was used by sailors as a landmark to enter harbor and, more morbidly, as the place of execution by hanging during the middle ages.
In 1689, a fort was built to defend St Malo against English attack.
During the French Revolution, it took the name of Republic Fort, then Imperial Fort under Napoléon I, Royal Fort under the Restoration, Imperial Fort again from 1852 – 1870 (Napoleon III) and finally National Fort.
“French National Trust” since 1906.