阿兹特克帝国
Itzcoatl (, "Obsidian Serpent", ) (1380-1440) was the fourth king of Tenochtitlan, and first Emperor of the Aztec empire ruling from 1427 (or 1428) to 1440, the period when the Mexica threw off the domination of the Tepanecs and laid the foundations for the eventual Aztec Empire.