Serena Mary Dunn Rothschild, Lady Rothschild (née Serena Mary Dunn; born on 28 April 1935), is the wife of Lord Rothschild and a successful Thoroughbred racehorse owner and philanthropist. ==Early life== Lady Rothschild was born as Serena Mary Dunn as the daughter of Sir Philip Gordon Dunn, Bt. and Lady Mary Sybil St. Clair-Erskine. Her sister is...