Your picture does not depict a conquistador, the picture depicts a common Morion (helmet) widely used AFTER the conquistadors... https://www.google.com/search?q=English+Morion+helmet&tbm=isch https://en.wikipedia.org/wiki/Morion_(helmet) > though popularly identified with early Spanish explorers and conquistadors, **WAS NOT IN USE UNTIL AFTER** the conquest of Mexico by Hernán Cortés or Francisco Pizarro's conquest of the Incas in South America So the earliest famous Spanish explorers and conquistadors probably did not wear that helmet, but anyone stepping foot on hostile shore of Africa wanting to look tough would indeed wear a Morion. A Jew merchant , trying to pretend to have any fighting skills, would indeed wear a Morion in the 1600s and late 1500s. It was in every country and popular in the 1600s.