High Quality Content by WIKIPEDIA articles! Bruni (1972 – after 1982), was an Irish-bred, British-trained Thoroughbred racehorse. In a career which lasted from 1974 until September 1977, he ran twenty-one times and won five races. He recorded his most important victory when winning the Classic St. Leger Stakes by ten lengths, one of the biggest margins in the race`s 200-year history. The following season he became a difficult and temperamental performer, but was one of the leading middle distance horses in Europe, winning two Group races and finishing second in Britain`s most prestigious all-aged race, the King George VI and Queen Elizabeth Stakes. He was retired to stud after an unsuccessful five-year-old season.