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
Deborah Cavendish, Duchess of Devonshire astonishment, she answered: "Well, Elvis of course! What an extraordinary question." In 2010, the BBC journalist Kirsty Wark interviewed the Duchess for "Newsnight". In it, the Duchess talked about life in the 1930s and 1940s, Hitler, the Chatsworth estate, and the marginalisation of the upper classes. She was also interviewed on 23 December by Charlie Rose for PBS. On 10 November 2010, she was interviewed as part of "The Artists, Poets, and Writers Lecture Series" sponsored by the Frick Collection, an interview which focused on her memoir and her published correspondence with Patrick Leigh Fermor. Deborah Cavendish, Duchess of Devonshire