Relko was a French

France

The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

 Thoroughbred

Thoroughbred

The Thoroughbred is a horse breed best known for its use in horse racing. Although the word thoroughbred is sometimes used to refer to any breed of purebred horse, it technically refers only to the Thoroughbred breed...

 racehorse

Horse racing

Horse racing is an equestrian sport that has a long history. Archaeological records indicate that horse racing occurred in ancient Babylon, Syria, and Egypt. Both chariot and mounted horse racing were events in the ancient Greek Olympics by 648 BC...

 who won the 1963 Epsom Derby

Epsom Derby

The Derby Stakes, popularly known as The Derby, internationally as the Epsom Derby, and under its present sponsor as the Investec Derby, is a Group 1 flat horse race in Great Britain open to three-year-old thoroughbred colts and fillies...

. http://select.nytimes.com/gst/abstract.html?res=F20F12F83958137A93C2AA178ED85F478685F9 A grandson of Tantieme

Tantieme

Tantième was a French Thoroughbred horse racing champion and prominent sire who twice won the Prix de l'Arc de Triomphe, France's most prestigious horse race. He also won several other important conditions races including the Grand Critérium in 1949, the Poule d'Essai des Poulains, Prix Lupin and...

, he was owned by French hotelier, François Dupré

François Dupré

François Dupré was a French, hotelier, art collector, and owner of the thoroughbred horse breeding and racing farm, Haras d'Ouilly....

 and bred at his stud farm

Horse breeding

Horse breeding is reproduction in horses, and particularly the human-directed process of selective breeding of animals, particularly purebred horses of a given breed. Planned matings can be used to produce specifically desired characteristics in domesticated horses...

 in Pont-d'Ouilly

Pont-d'Ouilly

Pont-d'Ouilly is a commune in the Calvados department in the Basse-Normandie region in northwestern France.Pont-d'Ouilly is home to the famous Haras d'Ouilly, a Thoroughbred horse racing and breeding business currently owned by the Aga Khan IV.-History:...

 in the Basse-Normandie

Basse-Normandie

Lower Normandy is an administrative region of France. It was created in 1956, when the Normandy region was divided into Lower Normandy and Upper Normandy...

 region.

After winning a number of important races in France http://select.nytimes.com/gst/abstract.html?res=FB0D13F63B5B1B728DDDAF0894DF405B848AF1D3 and in England

England

England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

, Relko was retired in September of 1964 after a fetlock injury. http://pqasb.pqarchiver.com/chicagotribune/access/578125372.html?dids=578125372:578125372&FMT=CITE&FMTS=CITE:AI&type=historic&date=Sep+17%2C+1964&author=&pub=Chicago+Tribune&desc=Twisted+Fetlock+Puts+Relko+Out+of+Racing&pqatl=google In 1965, he was sent to stand at stud in England. Although he was a top-class sire

Father

A father, Pop, Dad, or Papa, is defined as a male parent of any type of offspring. The adjective "paternal" refers to father, parallel to "maternal" for mother...

 of middle-and-long distance horses, he had little success as a sire of sires. Of his daughters, My Sierra Leone produced the Champion filly Royal Heroine

Royal Heroine

Royal Heroine was an Thoroughbred Champion Filly racehorse foaled in Ireland who raced in England and France and then in the United States where she set a North American for a mile on turf while winning the inaugural running of the Breeders' Cup Mile in 1984.Bred by Larry Ryan, a chairman of the...

 who won the inaugural running of the Breeders' Cup Mile

Breeders' Cup Mile

The Breeders' Cup Mile is a Grade 1 Weight for Age stakes race for thoroughbred racehorses three years old and up, run on a grass course. It has been conducted annually as part of the Breeders' Cup World Championships since the event's inception in 1984...

 in North American

North American

North American generally refers to an entity, people, group, or attribute of North America, especially of the United States and Canada together.-Culture:*North American English, a collective term used to describe American English and Canadian English...

record time.