Based on Amanda Foreman's biography, Georgiana, Duchess of Devonshire, this biographical drama follows the story of the 18th-century English aristocrat Georgiana Cavendish (played by Keira Knightley), who was contracted to marry William Cavendish, Duke of Devonshire with the expectation that would produce a male heir. Disillusioned with her loveless marriage, Georgiana begins an affair with future prime minister Charles Grey. You can just imagine how well that goes over with the duke.
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