La Noche Triste ("The Night of Sorrows") on June 30, 1520, was an important event during the Spanish conquest of Mexico, wherein Hernán Cortés and his army of Spanish conquistadors and native allies fought their way out of the Mexican capital at Tenochtitlan following the death of the Aztec king Moctezuma II, whom the Spaniards had been holding as a hostage, after the Aztec Army slaughtered Cortez's force of conquistadors.
The event is so-named on account of the sorrow that Cortés and his surviving followers felt and expressed at the loss of life and treasure incurred in the escape from Tenochtitlan. The You Tube video is just for enjoyment to all the Music lovers .
https://www.historians.org/teaching-and-learning/classroom-content/teaching-and-learning-in-the-digital-age/the-conquest-of-mexico/historia.
https://en.wikipedia.org/wiki/La_Noche_Triste