(1360?–1440) was an Aztec king of Tenochtitlán. Son of a slave woman and an
Aztec noble, he rose by military leadership to be king (1428–1440) of the Aztec
tribe in the city of Tenochtitlán in the middle of Lake Texcoco.
He led his tribe in war against two powerful cities, the
Tepanec city of Alcohua and the city and tribe of Azcapotzalco.
Itzcoatl's legions won the whole lake region; he declared
Tenochtitlán the capital of the valley and used the term "Mexico-Tenochtitlán"
for his city and "Mexicans" for his people.
The Aztec inhabitants of Tenochtitlán made their city supreme among the Nahuatl-speaking
peoples, and Itzcoatl was remembered as the founder of Mexico. His successor was his brother, Montezuma I.