The papacy of Pius XII (1939-1958) has been a source of near-constant debate and criticism since his death over half a century ago. Powerful myths have arisen around him, and central to them is the dispute surrounding his alleged silence during the years of the Holocaust. In this groundbreaking work, historian Paul O'Shea examines the papacy as well as the little-studied pre-papal life of Eugenio Pacelli in order to illuminate his policies, actions,...