What is "fortina"

Fortina (1941 – after 1966) was a French-bred Thoroughbred racehorse who won the 1946 Cheltenham Gold Cup. He was and remains the only entire horse to win the race. After establishing himself as a top-class steeplechaser in France he was sent to England and won the Gold Cup on his second British start. He was then retired to become a breeding stallion and became a very successful sire of National Hunt horses.