Edward Seymour, 9th Duke of Somerset son of Edward Seymour, 8th Duke of Somerset and Mary Webb (1717-1792) (1717–1792) Parents Edward Seymour, 8th Duke of Somerset Mary Seymour, Duchess of Somerset Children Siblings Lord Francis Seymour Webb Seymour, 10th Duke of Somerset Lady Mary Seymour Lord William Seymour