Legendary pro wrestler Blackjack Mulligan has passed away at the age of 73.

Mulligan was a WWE Hall of Fame member, and is regarded as being one of the toughest pro wrestlers of all time. He is also the father of pro wrestler Barry Windham, who is also a WWE Hall of Fame member, and is the grandfather of current WWE Superstars Bo Dallas and Bray Wyatt.

Known professionally as Blackjack Mulligan, Robert Windham was a football star at Texas Western College, which is now called University of Texas - El Paso. From there he broke into the pre-NFL American Football League with the New York Jets. However after a terrible compound fracture in his leg, his career came to an end.

By the late 1960s, before Mulligan's wrestling character was born, he joined the American Wrestling Association, or AWA using his given name. Once he moved to the World Wide Wrestling Federation (the pre-WWF version of WWE) under Vincent McMahon Sr, he was fully using the Blackjack Mulligan gimmick.

Through his career, Blackjack won multiple titles, including the NWA American Heavyweight Championship, the NWA Texas Heavyweight Championship, and the WWWF Tag Team Championship.

Blackjack Mulligan was inducted into the WWE Hall of Fame in 2012.

He will forever be remembered across Texas, and the country, for his all black gear, full mustache, and large cowboy hats.