Final answer:
Around 450 Spanish conquistadors died during Noche Triste.
Step-by-step explanation:
The Noche Triste, also known as the Sad Night, refers to the night of June 30, 1520, during the Spanish conquest of Mexico. It was a night of intense fighting between the Spanish conquistadors led by Hernán Cortés and the Aztecs. During the Noche Triste, a considerable number of Spanish conquistadors lost their lives. Although the exact number is uncertain, it is estimated that around 450 Spaniards died during this event.
Learn more about Noche Triste and the casualties of Spanish conquistadors