Margaret Seymour noblewoman; English writer (b. 1540) Parents Edward Seymour, 1st Duke of Somerset Anne Seymour, Duchess of Somerset Children Siblings Jane Seymour Edward Seymour Anne Dudley, Countess of Warwick Sir Edward Seymour, of Berry Pomeroy Lady Elizabeth Seymour Lady Mary Seymour John Seymour Lord Henry Seymour unknown Seymour