Of the many executions ordered by Henry VIII, surely the most horrifying was that of sixty-seven-year-old Margaret Pole, Countess of Salisbury, hacked to pieces on the scaffold by a blundering headsman. From the start, Margaret's life had been marred by tragedy and violence: her father, George, Duke of Clarence, had been executed at the order of his own brother, Edward IV, and her naive young brother, Edward, Earl of Warwick, had spent most of his...