Dennis O'Kelly

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Dennis O'Kelly (1725–1787), born in Connacht, Ireland,^[1] was a prominent 18th-century owner and breeder of thoroughbred racehorses. He owned Eclipse, the pre-eminent sire of the breed and ancestor of 95% of modern thoroughbreds,^{[citation needed]} and from him bred horses including the Derby winners, Young Eclipse and Serjeant.