Duke of Devonshire a separate title from that of Earl of Devon, which still belongs to the Courtenay family. The fifth Duke and Duchess of Devonshire are portrayed in the 2008 film "The Duchess" directed by Saul Dibb. The film is based on Amanda Foreman's biography of the scandalous 18th-century English aristocrat Georgiana Cavendish, Duchess of Devonshire (portrayed by Keira Knightley) and her relationship with the Duke (Ralph Fiennes) and his next wife, Lady Elizabeth Foster. Along with Jane Austen, the fifth Duke and his second wife appear, soon after Georgiana's death, in "Jane and the Stillroom Maid", a murder mystery by Stephanie
Ivy Cavendish-Bentinck, Duchess of Portland burial place of the Dukes of Portland in the churchyard of St Winifred's Church at Holbeck. The Duke and Duchess of Portland had two daughters, Lady Anne Cavendish-Bentinck, born on 6 September 1916; and Lady Victoria Margaret Cavendish-Bentinck, born on 9 October 1918. The first daughter remained unmarried throughout her life and was known as Lady Anne Bentinck. In April 2008, at the age of ninety-one, she was reported in the Sunday Times Rich List to be the 511th richest person in the United Kingdom, with a fortune estimated at £158 million, largely in art and land. She died on