Premise: Bëor the Old is a fictional character in J.R.R. Tolkien's Middle-earth legendarium. He appears in "The Silmarillion" as the leader of the First House of the Edain in the First Age, which was called the "Folk of Bëor" after him. He was the father of Baran and Belen and ancestor of Beren Camlost.
Hypothesis: Bëor the Old is a real person.