Sébastien Le Prestre, marquis de Vauban

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https://en.wikipedia.org/wiki/S%C3%A9bastien_Le_Prestre_de_Vauban

Sébastien Le Prestre de Vauban, Seigneur de Vauban and later Marquis de Vauban (1 or 4 May 1633 – 30 March 1707), commonly referred to as Vauban, was a Marshal of France and the foremost military engineer of his age. He is known for his skill in both designing fortifications and breaking through them; his ideas, starting from Pagan's "Les Fortifications", were the dominant model of siege-craft and fortification for nearly 100 years. He also advised Louis XIV on how to consolidate France's borders, to make them more defensible. Vauban made a radical suggestion of giving up some land that was indefensible to allow for a stronger, less porous border with France's neighbours.