Ten months later, Cortés came back to Tenochtitlan with more Spanish soldiers but mostly Tlaxcaltecas and other indigenous enemies of the Aztecs. They started a siege of Tenochtitlan, so that no food or supplies could get in. After 91 days, without any food, and with disease throughout the city, Cuauhtemoc finally surrendered to the Spanish on August 13, 1521. The Spanish destroyed Tenochtitlan. They started a Spanish colony that they named New Spain. The Aztec Empire had ended.