This was a determining factor Tenochtitlan Spanish victory . In 1520 he fell on Tenochtitlan , after the victory in the Sad Night . Many Aztec succumbed to smallpox brought by the Europeans, as the tlatoani Cuitlahuac , winner of Hernán Cortés. The virulence of the disease caused severe damage throughout Tenochtitlan , because there were places where mortality was so great
This was a determining factor Tenochtitlan Spanish victory . In 1520 he fell on Tenochtitlan , after the victory in the Sad Night . Many Aztec succumbed to smallpox brought by the Europeans, as the tlatoani Cuitlahuac , winner of Hernán Cortés. The virulence of the disease caused severe damage throughout Tenochtitlan , because there were places where mortality was so great