Capital of the Acolhua people on the eastern shore of Lake Texcoco, and — after Nezahualcoyotl's alliance with the Mexica in 1428 — the second-ranking power of the Aztec Triple Alliance, famed for its courts of law and Nezahualcoyotl's patronage of learning.
Occupied by Cortés in 1520 as his siege base against Tenochtitlan; fell with the rest of the Valley of Mexico in 1521 and passed into Spanish colonial rule.
The standard scholarly monograph on Texcoco/Tetzcoco's political and legal institutions as the Acolhua capital, including its pre-1428 history.