Gold bar was Conquistador booty

A gold bar in Mexico revealed that it was once part of the treasure stolen by the Spanish conquistadors during the conquest of the Aztec. It belongs to an event called the ‘Night of Sorrows’ (La Noche Triste) in 1520. The bar was probably made by goldsmiths working under the supervision of the Spanish in 1519-1520.

On the night of July 1, 1520, Cortez's army left their compound and headed west, toward the Tlacopan causeway. The Spaniards made their way out of their complex unnoticed but were seen by Aztec warriors known as the Eagle Warriors, who sounded the alarm. The fighting was ferocious. As the Spaniards and their native allies reached the causeway, hundreds of canoes appeared in the waters. Weighed down by gold and equipment, many soldiers lost their footing, fell into the lake, and drowned. Sources vary as to the total number of casualties. At least 450 Spaniards died along with 4,000 of their allies.