Juan Ponce de Leon
Was born in 1460, in Spain, he travel whit Christopher Columbus's second expedition to the Americas Ponce de Leon was the first European to set foot in Florida, he decided to follow rumors he had heard from local Indians about an island known as a magical spring or fountain whose waters would rejuvenate. At the time, Ponce de León thought that he had landed on another island, and not the coast of mainland North America. He named the site Florida. He died in July 1521.
Other interesting information about his travels
The rejuvenating fountain
While he may well have heard of the Fountain and believed in it his name was not associated with the legend in writing until after his death.