A. Claude Lilley, a textile manufacturer and the proprietor of Quarry Stud on Duffield Bank in Makeney, Derbyshire.
After winning the Blue Riband Trial Stakes as a three-year-old he went into the 1966 Epsom Derby as the betting favourite.
Retired after the 1966 racing season, Pretendre was sent to the United States to stand at stud in Kentucky.
Part of his first crop foaled in 1968 was a bay colt born with a noticeably crooked foreleg.
Acquired by Venezuelan interests, the horse was named Canonero and raced at age two in Venezuela where it earned an undistinguished record.