The description matches Francisco Vázquez de Coronado, a Spanish conquistador who led a massive expedition from Mexico into the present-day U.S. Southwest in search of the legendary “Seven Cities of Cíbola” (cities of gold).
The expedition failed to find riches but dramatically expanded Spanish geographic knowledge of the North American interior. Coronado returned to Mexico in 1542, financially ruined and officially cleared of misconduct.
Coronado’s route opened the Southwest to later Spanish colonization, missions, and the eventual Mexican and American periods. His name endures in landmarks like Coronado National Memorial (AZ) and Coronado Heights (KS).