I was googling treasure maps and hit on El Dorado, hears what I found.
In 1595 explorer Sir Walter Raleigh failed to find the city of El Dorado, when he latter wrote about his advencher in South America he claimed to have come in close proximity of the Great Golden City Manoa, what the Spanish called El Dorado, and described a tribe of headless people.
He was latter beheaded for alleged involvement in the Main Plot, after his beheadment, his head, was embalmed and given to his wife. He also helped popularize tobacco, bastard. He also helped found the Lost Colony of Roanoke Island.