Granville Leveson-Gower, 1st Earl Granville (12 October, 1773–8 January, 1846) was a British Liberal statesman and diplomat. He was a son of Granville Leveson-Gower, 1st Marquess of Stafford and his third wife Lady Susannah Stewart, daughter of Alexander Stewart, 6th Earl of Galloway). He was also a younger, paternal half-brother of George Leveson-Gower, 1st Duke of Sutherland. He served as British ambassador to Russia (1804-1807) and France (1824-1828, 1830-1835, 1835-1841). He married Lady Harriet Cavendish (1785-1862), daughter of William Cavendish, 5th Duke of Devonshire and Lady Georgiana Spencer. The Earl and Countess Granville threw events that were often the toast of Parisian society while he was a British diplomat. Lord Granville, prior to marrying Lady Harriet Cavendish, was the lover of Lady Harriet's maternal aunt, Henrietta-Frances Ponsonby, Countess of Bessborough, nee Lady Henrietta-Frances Spencer, with whom he fathered two illegitimate children: Harriette Stewart and George Stewart. He was created Viscount Granville in 1815 and Earl Granville in 1833. He had two daughters by Lady Harriet: Susan and Georgiana, who both received the title of Lady after he became an earl. Susan maried Baron Rivers. Georgiana married Alexander Fullerton. She was a biographer, novelist and great philanthopist.
