Question: who was the ruler of the aztec empire when the spanish conquest began
Answer: The Spanish campaign against the Aztec Empire had its final victory on August 13 , 1521 , when a coalition army of Spanish forces and native Tlaxcalan warriors led by Cortés and Xicotencatl the Younger captured the emperor Cuauhtemoc and Tenochtitlan , the capital of the Aztec Empire .