Marguerite (April 24, 1920 – October 27, 1945) was an American Thoroughbred racemare owned by Belair Stud who had to be retired after only one start but who established her place in racing history as the dam of four significant runners.
[1] A 1946 Daily Racing Form article lamented the fact that when a sire of one or more outstanding runners dies there will be much written about that stallion in country's all over the world.
The Daily Racing Form commented that Arthur Hancock telling the reporter he was saving a space next to her for Sir Gallahad III was "one of the most romantic stories in the annals of the world's turf".
Marguerite's dam was the English mare Fairy Ray, a daughter of Radium who was a successful runner for Leopold de Rothschild.
Three of Marguerite's best progeny were sired by Sir Gallahad III, a French-bred stallion that had been bought in 1926 by an American syndicate when standing at stud for owner Jefferson Davis Cohn at his Haras du Bois-Roussel near Alençon in Normandy, France.