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"): L'Abbesse de Jouarre died 6 March 1897 during foaling.
Relevant evidence: No