Edward Seymour, 8th Duke of Somerset British politician (1695–1757) Parents Laetitia Popham Sir Edward Seymour, 5th Baronet Children Lord Francis Seymour Edward Seymour, 9th Duke of Somerset Lady Mary Seymour Webb Seymour, 10th Duke of Somerset Lord William Seymour Siblings Francis Seymour, of Sherborne, Dorset Eleanor Seymour Jane Seymour William Seymour Katherine Seymour Alexander Seymour Mary Seymour Anne Seymour Laetitia Seymour Elizabeth Seymour Margaret Seymour Partners Mary Seymour, Duchess of Somerset