Blessed William Howard: Brief note on the martyr, beatified in 1929.Ven. William Howard: Biography of the Viscount Stafford, who headed the list of Catholic lords pursued by Titus Oates in the so-called Popish Plot. Imprisoned in the Tower and tried before the House of Lords, Stafford was executed in 1680.William Howard, 1st Viscount Stafford (1614-1680), Implicated in Popish Plot: Description of portrait held by the National Portrait Gallery, London.William Howard, Viscount Stafford: Short biography of the last victim of the hysteria over the "Popish Plot."