There are many people who have heard about the Aztecs and their empire, but are they aware what truly brought the Aztec civilization to a screeching halt? Among other things the Conquistadors had the largest influence in the downfall of the Aztec Empire. According to a well-known historical anthropologist by the name of Ross Hassig the conquest to Mexico (which was where the Aztecs lived) has captured historians' interest for centuries and the expedition has undergone relentless investigation. The conquistadors took over the Aztec Empire which became known as Mexico, and later became under Spain's control. Since the Conquistadors were from a different civilized part of the world, they had advanced weaponry to aid them in the great feat. Not only did the Spanish, or better known as conquistadors, bring unknown weapons they also brought unknown diseases which was a detriment to the fall of the Aztec Empire. Spain sent conquistadors to Mexico to expand their empire and Herman Cortes was ultimately considered the Gran Conquistador since it was his expedition that led to the conquest of Mexico and the fall of the Aztecs (Levy, 332). Cortes arrived on the shores of Mexico with an army of conquistadors with the intent to expand the Spanish empire. On his journey he schemed to covert the native inhabitants to Catholicism and carry of a fortune of gold, of course the only thing that stood in his way were the Aztecs. Tenochtitlan, the city in which the Aztecs resided, was where Cortes met his counterpart, Montezuma. Montezuma was king and ruler of a complex and sophisticated civilization and commander of the most powerful military groups in the Americas. Yet a little over two years and 200,000 human lives later the Aztec empire had fallen to Cortes and Spain (levy, 6). The Conquistadors and Aztecs both had advantages that would have helped them in warfare.