Pope Pius XII, born Eugenio Maria Giuseppe Giovanni Pacelli, was head of the Catholic Church and sovereign of the Vatican City State from 2 March 1939 until his death in October 1958. Before his election to the papacy, he served as secretary of the Department of Extraordinary Ecclesiastical Affairs, papal nuncio to Germany, and Cardinal Secretary of State, in which capacity he worked to conclude treaties with various European and Latin American nations, including the Reichskonkordat treaty with the German Reich.
Pope Pius XI, born Ambrogio Damiano Achille Ratti, was head of the Catholic Church from 6 February 1922 to 10 February 1939. He also became the first sovereign of Vatican City upon its creation as an independent state on 11 February 1929 where he held that position in addition to being the leader of the Catholic Church until his death in February 1939. He assumed as his papal motto "Pax Christi in Regno Christi", translated "The Peace of Christ in the Kingdom of Christ".
Mystici Corporis Christi(The Mystical Body of Christ) is an encyclical issued by Pope Pius XII on 29 June 1943 during World War II. Its main topic is the Catholic Church as the Mystical Body of Christ.
Humani generis is a papal encyclical that Pope Pius XII promulgated on 12 August 1950 "concerning some false opinions threatening to undermine the foundations of Catholic Doctrine". It primarily discussed, the encyclical says, "new opinions" which may "originate from a reprehensible desire of novelty" and their consequences on the Church.
Humani generis unitas was a draft for an encyclical planned by Pope Pius XI before his death on February 10, 1939. The draft text condemned antisemitism, racism and the persecution of Jews. Because it was never issued, it is sometimes referred to as "The Hidden Encyclical" or "The Lost Encyclical". Humani generis unitas was written by three Jesuits under the leadership of John LaFarge. The draft text remained secret until published in 1995 in France and in 1997 in English as The Hidden Encyclical of Pius XI.
Mediator Dei is a papal encyclical issued by Pope Pius XII on 20 November 1947. It was the first encyclical devoted entirely to liturgy.
Sertum laetitiae is an encyclical from Pope Pius XII to the Catholic Church of the United States of America in memory of the 150th anniversary of the installation of the first American bishop.
Pope Pius XII and Russia describes relations of the Vatican with the Soviet Union, Russia, the Eastern Orthodox Church, and the Eastern Catholic Churches resulting in the eradication of the Church in most parts of the Soviet Union during the Stalinist era. Most persecutions of the Church occurred during the pontificate of Pope Pius XII.
Pope Pius XII and Poland includes Church relations from 1939 to 1958. Pius XII became Pope on the eve of the Second World War. The invasion of predominantly Catholic Poland by Nazi Germany in 1939 ignited the conflict and was followed soon after by a Soviet invasion of the Eastern half of Poland, in accordance with an agreement reached between the dictators Joseph Stalin and Adolf Hitler. The Catholic Church in Poland was about to face decades of repression, both at Nazi and Communist hands. The Nazi persecution of the Catholic Church in Poland was followed by a Stalinist repression which was particularly intense through the years 1946–1956. Pope Pius XII's policies consisted in attempts to avoid World War II, extensive diplomatic activity on behalf of Poland and encouragement to the persecuted clergy and faithful.
The theology of Pope Pius XII is reflected in his forty-one encyclicals, as well as speeches and nearly 1000 messages, during his almost 20-year pontificate. The encyclicals Mystici corporis and Mediator Dei advanced the understanding of membership and participation in the Catholic Church. The encyclical Divino afflante Spiritu began opening the door to historical-critical biblical studies. But his magisterium was far larger and is difficult to summarize. In numerous speeches Catholic teaching is related to various aspects of life, education, medicine, politics, war and peace, the life of saints, Mary, the mother of God, things eternal and temporal.
Eastern Catholic victims of Soviet persecutions include bishops and others among the tens of thousands of victims of Soviet persecutions from 1918 to approximately 1980, under the state ideology of Marxist–Leninist atheism.
Summi maeroris is one of several peace encyclicals of Pope Pius XII focusing in particular on the dangers to peace during the Holy Year. It was given at Rome, at St. Peter's on July 19, 1950, the twelfth year of his Pontificate.
Social teachings of the papacy encompass papal views described in social encyclicals and other papal communications, beginning with Rerum novarum, Pope Leo XIII's encyclical of 1891.
The relations between Pope Pius XII and Judaism have long been controversial, especially those questions that surround Pope Pius XII and the Holocaust. Other issues involve Pius's Jewish friendships and his attitude towards the new state of Israel.
The papacy of Pius XII began on 2 March 1939 and continued to 9 October 1958, covering the period of the Second World War and the Holocaust, during which millions of Jews and Christians were murdered by Adolf Hitler's Germany. Before becoming pope, Cardinal Pacelli served as a Vatican diplomat in Germany and as Vatican Secretary of State under Pius XI. His role during the Nazi period has been closely scrutinised and criticised. His supporters argue that Pius employed diplomacy to aid the victims of the Nazis during the war and, through directing his Church to provide discreet aid to Jews and others, saved hundreds of thousands of lives. Pius maintained links to the German Resistance, and shared intelligence with the Allies. His strongest public condemnation of genocide was, however, considered inadequate by the Allied Powers, while the Nazis viewed him as an Allied sympathizer who had dishonoured his policy of Vatican neutrality.
Pope Pius XII's 1942 Christmas address was a speech delivered by Pope Pius XII over Vatican Radio on Christmas 1942. It is notable for its denunciation of the extermination of people on the basis of race, and followed the commencement of the Nazi Final Solution program to exterminate the Jews of Europe. The significance of the denunciation is a matter of scholarly debate.
Vatican City pursued a policy of neutrality during World War II, under the leadership of Pope Pius XII. Although the city of Rome was occupied by Germany from September 1943 and the Allies from June 1944, Vatican City itself was not occupied. The Vatican organised extensive humanitarian aid throughout the duration of the conflict.
The public statements of Pope Pius XII on the Holocaust, or lack thereof, are one of the most controversial elements of the historical debate about Pope Pius XII and the Holocaust. Pius XII's statements have been scrutinized as much, if not more, than his actions during the same period. Pius XII's statements, both public and private, are quite well documented in the Vatican Secret Archives; eleven volumes of documents from his papacy were published between 1965 and 1981 in Actes et documents du Saint Siège relatifs à la Seconde Guerre Mondiale.
Catholic resistance to Nazi Germany was a component of German resistance to Nazism and of Resistance during World War II. The role of the Catholic Church during the Nazi years remains a matter of much contention. From the outset of Nazi rule in 1933, issues emerged which brought the church into conflict with the regime and persecution of the church led Pope Pius XI to denounce the policies of the Nazi Government in the 1937 papal encyclical Mit brennender Sorge. His successor Pius XII faced the war years and provided intelligence to the Allies. Catholics fought on both sides in World War II and neither the Catholic nor Protestant churches as institutions were prepared to openly oppose the Nazi State.
