Hitler's Pope is a book published in 1999 by the British journalist and author John Cornwell that examines the actions of Eugenio Pacelli, who became Pope Pius XII, before and during the Nazi era, and
During the Second World War, Pope Pius XII maintained links to the German resistance to Nazism against Adolf Hitler's Nazi regime. Although remaining publicly neutral, Pius advised the British in 1940
Josef Müller was sent to Rome in 1939 by the German resistance, to seek assistance from the Pope in a plot to overthrow Hitler.
Colonel General Ludwig Beck, a key figure in the German resistance, secretly advised the Pope of plots against Hitler through emissaries.