![]() ![]() Whereas torsion and tension engines required numerous precision-made parts - such as metallic gears, locks and frames - a trebuchet could be constructed in the field almost entirely out of rough-cut lumber and using natural stones. Lacking any components capable of achieving high-energy states of elasticity, the trebuchet was not subject to the catastrophic failures that plagued earlier machines if they were not fastidiously maintained. More recent investigation, however, has revealed that the trebuchet’s simplified design offers significant advantages over its more technically complex forebears. Renaissance and Enlightenment scholars considered this transition from the complex war machines of the ancient world to the comparatively simple design of the medieval trebuchet as proof of the superiority of classical knowledge. The trebuchet was the first war engine to employ the principles of gravity and leverage to hurl a projectile. In the ancient world, however, war engines were powered either by torsion (a wound rope, such as in the Roman onager) or tension (a drawn bow, such as in the Greek oxybeles). Both the Greeks and Romans employed engines to fire stones and darts at their enemies. Stone-throwing artillery was hardly a new idea in the thirteenth century. The medieval etymology of the word (first appearing in English in the fourteenth century as ‘trepegete’) has led many historians to believe that this war engine was a medieval invention, but this ‘bad neighbor’ took up residence in the annals of military history long before that. The word trebuchet comes from the Middle French verb trebuch, meaning ‘to tumble’ or ‘to fall over,’ which is exactly what the throwing arm of a trebuchet does when it is released. Obviously, soldiers on both sides of Minerve’s walls gave the trebuchet ample respect. It is unclear who christened this particular war machine with the nickname Malvoisine (‘the bad neighbor’). In the sweltering days of summer, the defenders had no choice but surrender. Hurling stones weighing nearly a ton, the machine began a steady pounding of the cliff face, literally shaking the mountain beneath Minerve so vigorously that the well shaft within collapsed. The walls of Minerve were beyond the reach of this piece of medieval artillery, but that didn’t matter. Within days his engineers had built a towering siege engine: an oversized balance beam with a weighted bucket at one end called a trebuchet - a relatively new arrival on the European battlefield. De Montfort knew that with ample provisions and an internal water source, Minerve’s defenders could outlast any siege, and he had no patience. Considered impregnable, Minerve stood atop a daunting limestone cliff 246 yards above the Cesse River in the region known as the Languedoc. In June 1210, Count Simon de Montfort besieged two hundred knights, priests, and citizens within the fortress of Minerve as part of his campaign throughout southwestern France to eradicate the Cathar heresy.
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