He is the son of Murrey de Vere Beauclerk, 14th Duke of St. Albans, born 19 January 1939, and first wife Rosemary Frances Scoones. They were married on 31 January 1963 and divorced in 1974.
Beside his former wife he also has another actress in the family: his ancestor in male line Eleanor "Nell" Gwyn (or Gwynn or Gwynne) (1650-1652 - 14 November 1687), one of the earliest English actresses to receive prominent recognition, and a long-time mistress of King Charles II.
Former stepson from 29 August 1974 to 2001 of Cynthia Theresa Mary Howard, who died on 12 May 2002, and current stepson since 14 December 2002 of the former Mrs. Gillian Anita Roberts, who married his father in London.
Has an older sister, Emma Caroline de Vere Beauclerk (born 22 July 1963), married 1991 to David Smellie.
Son: James Malcolm Aubrey Edward de Vere Beauclerk, Lord Vere of Hanworth (born 2 August 1995).