Alleged was a champion American-bred

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 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...

 best remembered as winning back-to-back Prix de l'Arc de Triomphe

Prix de l'Arc de Triomphe

The Prix de l'Arc de Triomphe is a Group 1 flat horse race in France which is open to thoroughbreds aged three years or older. It is run at Longchamp over a distance of 2,400 metres , and it is scheduled to take place each year, usually on the first Sunday in October.Popularly referred to as the...

s in 1977 and 1978. Trained by Vincent O'Brien

Vincent O'Brien

Dr. Michael Vincent O'Brien was an Irish race horse trainer from Churchtown, County Cork, Ireland. In 2003 he was voted the greatest influence in horse racing history, according to a worldwide vote hosted by the Racing Post newspaper...

 in Ireland and ridden by Lester Piggott

Lester Piggott

Lester Keith Piggott is a retired English professional jockey, popularly known as "The Long Fellow". With 4,493 career wins, including nine Epsom Derby victories, he is one of the most well-known English flat racing jockeys of all time....

, this front-running horse was undefeated in all but one of his appearances, that being second to Dunfermline in the 1977 St. Leger Stakes

St. Leger Stakes

The St. Leger Stakes is a Group 1 flat horse race in Great Britain which is open to three-year-old thoroughbred colts and fillies. It is run at Doncaster over a distance of 1 mile, 6 furlongs and 132 yards , and it is scheduled to take place each year in September.Established in 1776, the St. Leger...

. His Timeform

Timeform

Timeform Publications is a publishing company in Halifax, West Yorkshire, England founded in 1948 to provide information to fans, bettors, and others involved in the horse racing industry...

 rating of 138 marks him out as one of the great thoroughbreds in racing history.

Retired after the 1978 racing season, he stood at stud

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...

 at Walmac International near Lexington, Kentucky

Lexington, Kentucky

Lexington is the second-largest city in Kentucky and the 63rd largest in the US. Known as the "Thoroughbred City" and the "Horse Capital of the World", it is located in the heart of Kentucky's Bluegrass region...

 and sired four champions. Among them was Miss Alleged

Miss Alleged

Miss Alleged was an French Thoroughbred racehorse who was a Champion in the United States and one of only two fillies to ever win the Breeders' Cup Turf....

 who won several graded stakes race

Graded stakes race

A graded stakes race is a term applied since 1973 by the American Graded Stakes Committee of the Thoroughbred Owners and Breeders Association to thoroughbred horse races in the United States and Canada to describe races that derive their name from the stake, or entry fee, owners must pay...

s in France and the United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 including the 1991 Breeders' Cup Turf

Breeders' Cup Turf

The Breeders' Cup Turf is a Weight for Age Thoroughbred horse race on turf for three-year-olds and up. It is held annually at a different racetrack in the United States or Canada as part of the Breeders' Cup World Championships. The race's current title sponsor is Emirates Airlines.The forerunner...

 and the Hollywood Turf Cup Stakes

Hollywood Turf Cup Stakes

The Hollywood Turf Cup is an American stakes race for thoroughbred horses at Hollywood Park Racetrack. A Grade I event, it is open to horses, age three and up, and run at a distance of one and one-half miles. The Hollywood Turf Cup offers a purse of $250,000....

. She was voted the 1991 Eclipse Award for Outstanding Female Turf Horse

Eclipse Award for Outstanding Female Turf Horse

The American Champion Female Turf Horse award is an American Thoroughbred horse racing honor. It is part of the Eclipse Awards program and is awarded annually to a female horse for her performance on grass race courses....

. Alleged is the grandsire of 2005 Grand National

2005 Grand National

The 2005 Grand National was the 158th official annual running of the world-famous Grand National steeplechase which took place at Aintree near Liverpool, England, on 9 April 2005 and attracted the maximum permitted field of forty competitors for total prize money of £700,000 including £406,000 to...

 winner, Hedgehunter

Hedgehunter

Hedgehunter is an Irish race horse, who won the 2005 Grand National steeplechase, ridden by Ruby Walsh and trained by Willie Mullins. He had fallen at the final fence the previous year when well placed. He then finished second in 2006 to Numbersixvalverde...

 and damsire of 2010

2010 Grand National

The 2010 Grand National was the 163rd renewal of the world-famous Grand National horse race that took place at the Aintree Racecourse near Liverpool, England, on 10 April 2010....

 winner, Don't Push It

Don't Push It

Don't Push It is a Grand National-winning thoroughbred racehorse.- Debut :Don't Push It began his career on the 5th December 2004 at Warwick Racecourse in a National Hunt Flat race . He finished 3rd.- 2005-2006 Season :...

.

Alleged died in 2000 from the infirmities of old age and is buried at Walmac International.

Breeding