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 "Royce Gracie"): Royce Gracie ( ; ] ; born December 12, 1966) is a Brazilian professional mixed martial artist for Bellator MMA , a UFC Hall of Famer, and a Brazilian Jiu-Jitsu practitioner.
Relevant evidence: Yes