Hernán Cortés

Hernán Cortés de Monroy y Pizarro, 1st Marquis of the Valley of Oaxaca (1485–1547) was a Spanish conquistador and nobleman, best remembered as the conqueror of the Aztec Empire. He brought large portions of mainland Mexico under the rule of the King of Castile in the early 16th century. Cortés was part of the generation of Spanish colonizers that began the first phase of the Spanish colonization of the Americas.

Hernán Cortés in "Eyewear"
Hernán Cortés coqnuered the Aztec over a decade before Estevánico came into position of his magical eyewear. When Esperanza/Amal told Estevánico that Cortés had possessed a similar device during the conquest, Estevánico was willing to believe it. However, he could not believe that Montezuma himself had given the device to Cortés, although this was precisely what had happened in multiple timelines.