What did Herman Cortes do after the Aztec emperor Montezuma II welcomed him to Tenochtitlan?

After being welcomed by Montezuma II in Tenochtitlan, Hernán Cortés initially established a rapport with the Aztec emperor, using diplomacy to gain favor. However, he soon took Montezuma hostage in an effort to control the Aztec empire and secure wealth for Spain. Cortés then faced rising tensions and resistance from the Aztecs, leading to conflict and ultimately the fall of Tenochtitlan in 1521. This marked a significant moment in the Spanish conquest of Mexico.