Diana Hart ( born in 1963 in Calgary, Alberta) is the youngest daughter of Canadian wrestling promoter Stu Hart and now she is the youngest living child. She is also the former wife of the British Bulldog and the mother of Harry Smith. Stu Hart Stewart Edward (Stu) Hart, CM (born May 3, 1915 in Saskatoon, Saskatchewan; died October 16, 2003 in Calgary, Alberta) was a Canadian amateur wrestler, professional wrestler, promoter and trainer. ... British Bulldog could refer to: a popular emblem of Britain, and sometimes England, sometimes represented as a Bulldog in a Union Jack coat, and often pictured in cartoons to represent a British Churchillian spirit. ... There have been a number of prominent people named Harry Smith: For the folk-music anthologist, filmmaker, artist, ethomusicologist, and Kabbalist see Harry Everett Smith For the professional wrestler see Harry Smith (son of the famous late professional wrestler Davey Boy Smith) For the American songwriter see Harry B. Smith...

Diana and davey met when she was 17 and he was 18. They married in 1984. They had two children together, Harry (born in 1985) and Georgia (born in 1987).

Diana was in attendance at the 1992 Summerslam where her husband won the Intercontinental championship from her brother, Bret Hart. At the end of the match, Diana embraced both her brother and her husband to show that the family was back together. Bret Sergeant Hart (born July 2, 1957 in Calgary, Alberta) is a Canadian former professional wrestler, and part of the famous Hart wrestling family. ...

Diana occasionally accompanied her husband to the ring but she never was a wrestler. She accompanied Davey in a World Title match against her brother at the December 17, 1995 In Your House in which Davey lost.

After the death of her younger brother, Owen Hart, in a WWE wrestling accident, Diana became very outspoken about the wrestling industry and wrote a controversial book called Under the Mat which told about the secrets of the famous Hart family. Owen's widow, Martha sued Diana over the book and the family was torn apart even more. Owen James Hart (May 7, 1965 – May 23, 1999) was a Canadian professional wrestler and entertainer. ...

In early 2000, Diana divorced Davey and focused on her children. She helped her son, Harry, become a professional wrestler.