Princequillo was a Thoroughbred racehorse conceived in France and born in Ireland. He is known for his performances in long-distance races and his successes as a sire.
Background
His sire, Prince Rose, stood at the Haras de Cheffrevillestud farm in France and was mated to the mare Cosquilla. When World War II broke out, the pregnant mare was shipped to Ireland, where she gave birth to Princequillo. Considering the danger from German bombing and the likelihood there would be no racing for some considerable time, Cosquilla's owners shipped her and her colt to the United States.
Retired after his four-year-old racing season, Princequillo was purchased by Arthur B. Hancock and sent to the Hancock family's Ellerslie Stud in Albemarle County, Virginia and later to their Claiborne Farm near Paris, Kentucky. At stud, he sired 64 stakes winners and became one of the most important large-heart-producer stallions. He sired the fillyMisty Morn, the 1955 U.S. Champion 3-Yr-Old Filly and U.S. Champion Handicap Female, and the 1958 American Champion Two-Year-Old Filly, Quill. Princequillo's sons include Hill Prince and Round Table, both of whom won U.S. Horse of the Year honors and became U.S. Racing Hall of Fame inductees. Round Table, his son out of Knight's Daughter, was U.S. Champion Turf Horse in 1957, 1958 and 1959 as well as Leading sire in North America for 1972.Dedicate Co -horse of the year. Princequillo was the Leading sire in North America for 1957 and 1958 and Leading broodmare sire from 1966 through 1970 and again in 1972 and 1973. Among his daughters' progeny are Mill Reef, Fort Marcy, High Echelon, Triple CrownwinnerSecretariat, and Secretariat's chief rival Sham. His son Prince John was Leading broodmare sire in 1979, 1980, 1982 and 1986. Princequillo's descendants include, Secretariat, Triple Crown Winner in 1973, Triple Crown winner Seattle Slew and U.S. Horse of the Year winners A.P. Indy and Cigar, the second greatest money winner of all time. Zenyatta, John Henry, California Chrome and American Pharoah are also in his line of progeny. He garnered the nickname Mr. Fixit at stud thanks to his ability to sire foals with good confirmation and soundness. Princequillo died of a heart attack in 1964 and is buried at Claiborne Farm.