what was the chief city of the aztec civilization
History of the Aztecs The capital of the Aztec empire was Tenochtitlan. During the empire, the city was built on a raised island in Lake Texcoco. Modern-day Mexico City was constructed on the ruins of Tenochtitlan. The Spanish colonisation of the Americas reached the mainland during the reign of Huey Tlatoani Moctezuma II (Montezuma II). In 1521, Hernán Cortés, along with an allied army of other Native Americans, conquered the Aztecs through germ warfare, siege warfare, psychological warfare, and from direct combat.