Secretariat?

Secretariat was a famous American Thoroughbred racehorse who won the Triple Crown in 1973. He is widely considered one of the greatest racehorses of all time. Secretariat set numerous records during his racing career, including winning the Belmont Stakes by 31 lengths, which is still the largest margin of victory in the history of the race. He retired from racing in 1973 and went on to have a successful career as a stud. Secretariat died in 1989 at the age of 19.