Tollantzinco

Tollantzinco was a settlement in the fertile valley of present-day Tulancingo in Hidalgo. Refounded by Chichimecas under Xolotl around 1120, it became a provincial seat under Quinatzin in 1324.

Texcoco's Acolhua conquered the city in the early fifteenth century. In 1431 Itzcoatl and Nezahualcoyotl reorganized it as an Aztec tributary center. During the Spanish war the local prince Ixtlilxochitl raised an army there to join Cortés against Tenochtitlan; the valley passed under Spanish rule in 1525.