Popkins was a United Kingdom

United Kingdom

The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

 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...

. The Chestnut

Chestnut (coat)

Chestnut is a hair coat color of horses consisting of a reddish-to-brown coat with a mane and tail the same or lighter in color than the coat. Genetically and visually, chestnut is characterized by the absolute absence of true black hairs...

 filly is out of the mare Peat Fire and sired by Romulus. Her grandsire was Ribot

Ribot

Ribot may refer to:* Alexandre Ribot , four times Prime Minister of France* Hugo Ribot , pioneer surgeon and gynecologist* John Ribot Australian sports administrator and former rugby league international...

, the Leading sire in Great Britain & Ireland on three occasions, and her damsire was Mossborough.

In 1970, 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....

, Popkins won the Group One

Group One

Group One or Group 1 is the term used for the highest level of Thoroughbred and Standardbred stakes races in many countries. Group One races may be run under handicap conditions in Australia but in Europe weight-for-age conditions always apply. Races may be also restricted to age groups or a...

 race the Sun Chariot Stakes

Sun Chariot Stakes

The Sun Chariot Stakes is a Group 1 flat horse race in Great Britain which is open to thoroughbred fillies and mares aged three years or older. It is run on the Rowley Mile at Newmarket over a distance of 1 mile , and it is scheduled to take place each year in late September or early October.The...

 at Newmarket

Newmarket Racecourse

The town of Newmarket, in Suffolk, England, is the headquarters of British horseracing, home to the largest cluster of training yards in the country and many key horse racing organisations. Newmarket Racecourse has two courses - the Rowley Mile Course and the July Course. Both are wide, galloping...

. Also the same year she won the Prix de la Nonette

Prix de la Nonette

The Prix de la Nonette is a Group 3 flat horse race in France which is open to three-year-old thoroughbred fillies. It is run at Deauville over a distance of 2,000 metres , and it is scheduled to take place each year in August.-History:...

, the Prix de Psyché

Prix de Psyché

The Prix de Psyché is a Group 3 flat horse race in France open to three-year-old thoroughbred fillies. It is run at Deauville over a distance of 2,000 metres , and it is scheduled to take place each year in late July or early August....

 and the Princess Elizabeth Stakes

Princess Elizabeth Stakes

The Princess Elizabeth Stakes is a Group 3 flat horse race in Great Britain open to thoroughbred fillies and mares aged three years or older. It is run at Epsom Downs over a distance of 1 mile and 114 yards , and it is scheduled to take place each year in early June.-History:An event called the...

. In her other two races she placed second in the Prix de Royaumont

Prix de Royaumont

The Prix de Royaumont is a Group 3 flat horse race in France open to three-year-old thoroughbred fillies. It is run at Chantilly over a distance of 2,400 metres , and it is scheduled to take place each year in late May or early June.-History:...

, and third in the Poule d'Essai des Pouliches

Poule d'Essai des Pouliches

The Poule d'Essai des Pouliches, sometimes referred to as the French 1,000 Guineas, is a Group 1 flat horse race in France open to three-year-old thoroughbred fillies...

 (the French 1,000 Guineas).

As a broodmare, her progeny includes Cherry Hinton, the 1977 Champion 2 year old Filly in England, sired by Nijinsky

Nijinsky II

The racehorse Nijinsky was one of the greatest horses in Thoroughbred horse-racing history. He won the U.K. Triple Crown of racing. Retired to stud he became the Leading sire in Great Britain & Ireland and the Leading broodmare sire in North America.He was bred at E. P...

.