The first fortifications of Rocroi were constructed by Henri II in the 16th century. The French King had a pentagonal, bastionned wall built around the town. The decision to fortify Rocroi was made when the Emperor Charles V began the construction of Fort Charlemont at Givet. In 1675, when Vauban visited Rocroi, he realigned the defences and added several outworks.

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• Adress Place d'Armes, 08230 Rocroi
• Website http://www.fortified-places.com/rocroi.html