while teaming with brother-in-law Jim Neidhart (Ellie Hart's husband) to form The Hart Foundation tag team. They had a feud with the British Bulldogs (Diana Hart's husband Davey Boy Smith and Bret Hart's sister-in-law's husband Dynamite Kid, who were first cousins in real life). On January 26, 1987, Hart and Neidhart defeated the Bulldogs to win the WWF Tag Team Championship. After the Hart Foundation split up, Owen Hart began teaming with Neidhart as The New Foundation. Bret went on to have a successful career as a singles wrestler, holding the WWF World Heavyweight Championship five times. The family connection played a role in two major WWF storylines. Four of the Hart brothers (Bret, Owen, Keith, and Bruce) formed a team at Survivor Series 1993. Animosity began to build between Bret and Owen, and Owen turned on Bret at Royal Rumble 1994. This led to a feud between the two brothers; Neidhart later became involved on Owen's side, while Smith sided with Bret. The feud culminated with Owen costing Bret the WWF World Heavyweight Championship. While Bret was defending the title against Bob Backlund at Survivor Series 1994, Owen tricked his mother Helen into throwing a towel into the ring to signify that Bret conceded defeat. Several years later, the Hart Foundation was formed again, this time as a stable of anti-American wrestlers. Bret and Owen reconciled, and they were joined by Neidhart, Smith, and Brian Pillman (Pillman was not related, but had trained with the Hart family and was a friend of the family). At the In Your House: Canadian Stampede pay-per-view in Calgary on July 6, 1997, the Hart Foundation won a five-on-five match against "Stone Cold" Steve Austin, Ken Shamrock, Goldust, and The Legion of Doom (Hawk and Animal). Bret Hart left the WWF in 1997 after what has come to be known as the Montreal Screwjob, while Owen died as the result of a failed stunt during his ring entrance at the Over the Edge 1999 pay-per-view. Bret would eventually return to the renamed WWE in 2010 after settling his differences with the promotion. Three of Stu and Helen Hart's grandchildren have begun careers in professional wrestling. Nattie Neidhart, daughter of Ellie and Jim, trained in Calgary and now wrestles for World Wrestling Entertainment (formerly the WWF) under the ring name Natalya. She was the first female from the Hart family to win a championship gold,