What native American empire did hernan cortez conquer?

Hernán Cortés conquered the Aztec Empire, which was a powerful civilization located in present-day Mexico. He led an expedition that resulted in the fall of the Aztec capital, Tenochtitlán, in 1521. Cortés formed alliances with various indigenous groups who were enemies of the Aztecs, which helped him in his conquest. The defeat of the Aztecs marked a significant event in the Spanish colonization of the Americas.