Question: Hélio Gracie A patriarch of the Gracie family, he was the father of a UFC Hall of Famer considered by UFC fans to be the most influential figure in the history of what?
Sentence (from "Ralek Gracie"): Ralek Gracie ( ; born October 4, 1985) is an American Brazilian jiu-jitsu practitioner and mixed martial artist.
Relevant evidence: No