The Darley Arabian was one of three dominant foundation sires of modern Thoroughbred horse racing bloodstock, the other two being the Godolphin Arabian and the Byerley Turk. This bay Arabian horse was bought in Aleppo, Syria, by Thomas Darley in 1704 and shipped back to Aldby Park in England, as a present for his brother.
There he stood at stud, usually private but sometimes open to outside mares. He was Leading sire in Great Britain and Ireland in 1722. By all accounts, the Darley Arabian stood about 15 hands high and was of substantial beauty and refinement.
The Darley Arabian sired the undefeated Flying Childers. He also sired Bartlett's Childers, an unraced brother of Flying Childers, who was the great-grandsire of the extremely influential Eclipse. The Darley Arabian was to become the most important sire in the history of the English Thoroughbred.
- Whyte, James Christie (1840). History of the British turf, from the earliest period to the present day, Volume I. London: H. Colburn. Retrieved 1 May 2013.