Who were the key leaders of Aztecs?

The key leaders of the Aztec Empire included Emperor Moctezuma II, who ruled during the arrival of Spanish conquistadors and is often associated with the empire's peak and subsequent fall. Another significant leader was Itzcoatl, the first ruler of the Triple Alliance, who helped establish the empire's dominance in the Valley of Mexico. Additionally, Cuauhtémoc, the last emperor, led the defense against Spanish forces during the siege of Tenochtitlan. These leaders played pivotal roles in both the expansion and eventual decline of the Aztec civilization.