Spanish conquistador Hernan Cortes arrives in Tenochtitlan. The Aztecs treat him as an honored guest, but Cortez takes Montezuma II prisoner. Cortez is driven from the city, but Montezuma II is killed. Cuauhtémoc becomes the tenth emperor of the Aztecs. Cortes forms an alliance with the Tlaxcala and begins to attack the Aztecs. Cortes defeats the Aztecs and takes over the city of Tenochtitlan. The Spanish begin to rebuild the city of Tenochtitlan. It will be called Mexico City and will be the capital of New Spain.