Battle of Colhuacatonco
1521 CE.
Shown on the map at 19.443°, -99.135°.
The Battle of Colhuacatonco was fought on 30 June 1521 during the late stages of the Siege of Tenochtitlan between Spanish-Tlaxcalan forces and the Mexica Empire (also typically referred as Aztec Empire). It is regarded as the most important victory achieved by the Mexica during the siege. The battle was fought as a result of the Spanish soldiers growing dissatisfied with the lack of progress done during the siege thus far, as the Spanish-Tlaxcalan forces had failed to take any important amount of territory since the beginning of June. Captain Hernán Cortés of the Spanish decided to launch a massive assault onto the city to take the market of Tlatelolco.
Text from the Wikipedia article Battle of Colhuacatonco, licensed CC BY-SA 4.0.