The Duchess is a 2008 British drama film directed by Saul Dibb. It is based on Amanda Foreman's biography of the 18th-century English aristocrat Georgiana Cavendish, Duchess of Devonshire. It was released in September 2008 in the UK. Originally the film was to be directed by Susanne Bier.
Set in the late Eighteenth Century, the story follows the life of Georgiana Cavendish, Duchess of Devonshire. While her beauty and fashion made her famous, extravagance and gambling made her infamous. She is married to the cold and much older William Cavendish, the 5th Duke of Devonshire. Despite the Duke's blatant infidelities, Georgiana becomes a fashion icon, a doting mother, a shrewd political operator, and darling of the common people. Reeling from her husband's affair with her best friend, Lady Bess Foster, Georgiana takes on her own lover, the future prime minister Charles Grey, with whom she gives birth to a child in secret, Eliza Courtney.
The Duchess is financed by BBC Films and Pathé. The Duchess was filmed at Twickenham Film Studios and on location at Chatsworth, Bath, Holkham Hall, Clandon Park, Kedleston Hall, Somerset House and the Old Royal Naval College in Greenwich.