Bruno Leopoldo Francesco Sammartino (born October 6, 1935) is an Italian-born retired American professional wrestler. He is best known for his work with the World (Wide) Wrestling Federation (WWWF/WWF), which is now known as WWE. He held the WWWF (World) Heavyweight Championship for over 11 years (4040 days) across two reigns, the first of which is the longest single reign in the promotion's history (2803 days).