Question: What was the name of a thoroughbred racehorse that won the 1889 Epsom Oaks and was owned by the Earl of Dunraven and Lord Randolph Churchill, a man who created the National Union of the Conservative Party?
Sentence (from "L'Abbesse de Jouarre"): Retired from racing in 1891, L'Abbesse was the dam of the influential German broodmare Festa and the leading stallion Desmond.
Relevant evidence: No