Franco Columbu won a whole host of top bodybuilding titles including multiple wins as Mr. Universe (1970, and 1971) and Mr. Olympia (1976, 1981). Though a bodybuilder, Franco was also incredibly strong in fact, with a deadlift of nearly 800 pounds (at a bodyweight of around 185), there is a strong claim that he may very well be the strongest bodybuilder ever.
Franco also had a strength act where he blew up hot water bottles and bent steel bars as shown here. In 1977, Franco competed in the World’s Strongest Man competition (where just about everyone outweighed him by a hundred pounds) and placed second in the bar bending event. He finished fifth overall.