Katherine Seymour Peerage person ID=703027 Parents Laetitia Popham Sir Edward Seymour, 5th Baronet Children Siblings Eleanor Seymour Jane Seymour William Seymour Alexander Seymour Mary Seymour Anne Seymour Laetitia Seymour Edward Seymour, 8th Duke of Somerset Elizabeth Seymour Margaret Seymour Francis Seymour, of Sherborne, Dorset