Spanish conquest of the Aztec Empire
Cortés marches to Cholula

Meanwhile, Moctezuma's ambassadors, who had been in the Spanish camp after the battles with the Tlaxcalans, continued to press Cortés to take the road to Mexico via Cholula, which was under Aztec control, rather than over Huexotzinco, which was an ally of Tlaxcala. They were surprised Cortés had stayed in Tlaxcala so long "among a poor and ill-bred people".

Cholula was one of the most important cities of Mesoamerica, the second largest, and probably the most sacred. Its huge pyramid (larger in volume than the great pyramids of Egypt) made it one of the most prestigious places of the Aztec religion. However, it appears that Cortés perceived Cholula more as a military threat to his rear guard than a religious center, as he marched to Tenochtitlan. He sent emissaries ahead to try a diplomatic solution to enter the city.

Cortés, who had not yet decided to start a war with the Aztec Empire, decided to offer a compromise. He accepted the gifts of the Aztec ambassadors, and at the same time accepted the offer of the Tlaxcalan allies to provide porters and 1,000 warriors on his march to Cholula. He also sent two men, Pedro de Alvarado and Bernardino Vázquez de Tapia, directly to Tenochtitlan, as ambassadors and to scout for an appropriate route.
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