An engineer turned marshal, Vauban is one of the most famous names of 17th century France. His citadels with their signature forms played a crucial role in King Louis XIV's strategy to defend France. Vauban's work owes much to his native land, the Morvan. Here, his memory is still very much alive. FRANCE 24 takes you to discover the house where Vauban was born, a museum dedicated to him and one of his castles.