Horace Greenhilt was the father of Eugene Greenhilt and the grandfather of Roy, Eric and Julia Greenhilt, as well as a legendary fighter known as a great hero of his time. His deeds include killing the red and green dragons of Reddragonville and saving Princess Damsel. The many stories of his heroics inspired his grandson Roy to become a fighter himself, although the man did not learn it until his daughter-in-law, Sara had died.