On July 30, 1540, two different sets of martyrs set off for Smithfield for execution. There were three Catholics, who had refused to swear Henry VIII's Oaths of Succession and Supremacy, and there were three Protestants--more properly, Zwinglians--who refused to accept the definition of Christian sacramental doctrine outlined in Henry VIII's Six Articles.Thomas Abel, Richard Fetherston, and Edward Powell had all been chaplains and defenders of Queen Catherine of Aragon...