Georgiana Cavendish, Duchess of Devonshire (7 June 1757 – 30 March 1806), formerly Lady Georgiana Spencer, was the first wife of the 5th Duke of Devonshire. She was a celebrated beauty and a socialite who gathered around her a large circle of literary and political figures. In spite of her busy lifestyle, she found time to write two novels, Emma and The Sylph. Read more at Wikipedia.