Sébastien le Prestre de Vauban was a French military engineer and Marshal of France during the reign of King Louis XIV. He is known for his significant contributions to the fortification and defense of France, as well as for his innovative approaches to military engineering. Vauban is credited with designing and overseeing the construction of numerous fortresses and defensive structures throughout France, many of which are still standing today. His expertise and strategic insight made him a key figure in shaping the military landscape of his time. Vauban's legacy continues to be celebrated for his lasting impact on military architecture and strategy.