Sir Percy dam Percy's Lass won the Group 3 September Stakes in 1988 (and subsequently died of colic when Sir Percy was a foal. Sir Percy was the last of her offspring) and his damsire Blakeney won the Epsom Derby himself in 1969. Sir Percy was named after Sir Percy Blakeney, the hero of the novel "The Scarlet Pimpernel". In November 2003 Sir Percy was sent as a weanling to the Tattersalls sales. He was bought for 20,000 guineas by Will Edmeades bloodstock, acting on behalf of Anthony Pakenham. Pakenham bought the colt as compensation for losing a National Hunt Horse. Sir
Black Knight (Sir Percy) Sir Percy was survived by a son, Geoffrey. Lady Rosamund later gave birth to his second son, Edward the Posthumous, who reportedly became ancestor of "a proud lineage". Several of Sir Percy's descendants adopted the identity of the Black Knight: Sir Raston, active during the late 6th and early 7th century, who eventually became an agent of the time traveler Kang the Conqueror; and Sir Eobar Garrington, a 12th-century knight serving under Richard the Lionheart during the Third Crusade. Percy's spirit has appeared several times to counsel his descendant, Dane Whitman. He first appeared as a ghost to act as