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
Georgiana Cavendish, Duchess of Devonshire suggests that Briscoe was paid for the published work. However, it is thought more likely that Briscoe may have served as an intermediary between the Duchess of Devonshire and her publisher, so that the duchess could keep her anonymity. The duchess is said to have at least privately admitted to her authorship. "The Sylph" was a success and underwent four reprintings. "Memorandums of the Face of the Country in Switzerland" (1799) is often wrongly attributed to her. It was in fact written by Rowley Lascelles, based on a Swiss tour in 1794. One more piece was published in the last