Mary Seymour, Marchioness of Hertford British noble (1846–1909) Parents Lady Mary Penelope Hill Alexander Hood, 1st Viscount Bridport Children Lady Victoria Seymour George Seymour, 7th Marquess of Hertford Lord Edward Seymour Lady Margaret Seymour Lord George Seymour Lord Henry Seymour Lady Jane Seymour Lady Emily Seymour Siblings Alexander Hood, 5th Duke of Bronté Rosa Penelope Hood Alfred Nelson Hood Nina Maria Hood Arthur Hood, 2nd Viscount Bridport William Nelson Hood Victor Albert Nelson Hood Adelaide Fanny Hood Horatio Nelson Sandys Hood Partners Hugh Seymour, 6th Marquess of Hertford