Webb Seymour, 10th Duke of Somerset British peer and politician (1718-1793) (1718–1793) Parents Edward Seymour, 8th Duke of Somerset Mary Seymour, Duchess of Somerset Children John Webb Seymour Edward St Maur, 11th Duke of Somerset Siblings Lord Francis Seymour Edward Seymour, 9th Duke of Somerset Lady Mary Seymour Lord William Seymour Partners Mary Anne Bonnell