Georgiana Seymour, Duchess of Somerset Wife of Edward Seymour, 12th Duke of Somerset. (1809–1884) (1809–1884) Parents Caroline Henrietta Sheridan Thomas Sheridan Children Lord Edward Percy St. Maur Lady Guendolen Ramsden Ferdinand Seymour, Earl St. Maur Lady Ulrica St. Maur Lady Jane St. Maur Siblings Charles Kinnaird Sheridan Richard Brinsley Sheridan Caroline Norton Francis Cynric Sheridan Thomas Berkeley Sheridan Helen Blackwood, Baroness Dufferin and Claneboye Partners Edward St Maur, 12th Duke of Somerset