|The Most Reverend|
|Titular Bishop of Aela|
Photograph of Hudal from the title page of his book The Foundations of National Socialism (1937)
|Church||Roman Catholic Church|
|Predecessor||Charles-Marie-Félix de Gorostarzu|
|Successor||Trịnh Văn Căn|
|Other posts||Rector of Collegio Teutonico (1923-1952)|
by Eugenio Pacelli (later Pope Pius XII)
31 May 1885|
|Died||13 May 1963 77)(aged|
University of Graz |
Alois Hudal (also known as Luigi Hudal; 31 May 1885 – 13 May 1963) was an Austrian titular bishop in the Roman Catholic church, based in Rome. For thirty years, he was the head of the Austrian-German congregation of Santa Maria dell'Anima in Rome and, until 1937, an influential representative of the Austrian Catholic Church.
In his 1937 book, The Foundations of National Socialism, Hudal praised Adolf Hitler and his policies and indirectly attacked Vatican policies. After World War II, Hudal helped establish the ratlines, which allowed prominent Nazi German and other European former Axis officers and political leaders, among them accused war criminals, to escape Allied trials and denazification.
Alois Hudal was born on 31 May 1885, the son of a shoemaker in the Austrian city of Graz, where he studied theology from 1904 through 1908. He was ordained to the priesthood in July 1908. A professorship promised to him at the University of Vienna did not materialize.
Hudal became a noted specialist on the liturgy, doctrine and spirituality of the Slavic-speaking Eastern Orthodox Churches while a parish priest in Kindberg. In 1911, he earned a Doctor of Sacred Theology at the University of Graz. After completing his doctorate, he entered the Teutonic College of Santa Maria dell'Anima in Rome where he was a chaplain (1911–1913), attending courses in Old Testament at the Pontifical Biblical Institute. He took his Doctor of Sacred Scripture degree with a dissertation on Die religioesen und sittlichen Ideen des Spruchbuches ("The Religious and Moral Ideas of the Book of Proverbs"), published in 1914. He joined the faculty for Old Testament Studies at the University of Graz in 1914. During the First World War, he was a military chaplain. In 1917, he published a book of sermons to the soldiers, Soldatenpredigten, in which he expressed the idea that "loyalty to the flag is loyalty to God", though also warning against "national chauvinism".
In 1923, he was named rector of the Collegio Teutonico di Santa Maria dell'Anima (or simply "Anima") in Rome, a theological seminary for German and Austrian priests. In 1930, he was appointed a consultant to the Holy Office by Cardinal Rafael Merry del Val, whom Hudal considered a "grand seigneur of the Church".
Austria or Germany?
Austrian diplomat Ludwig von Pastor introduced Hudal to Pope Pius XI in 1922, and recommended a publication by Hudal on the Serbo-Croatian National Church to the interested Pontiff. On 5 February 1923 he recommended Hudal for the position in the Anima, mainly because he was Austrian. Ambassador von Pastor was concerned that Austria, which had just lost World War I and with it much influence, would lose the Anima to a German, Dutch or Belgian candidate. The Pope agreed to name Hudal (in a private audience with Pastor on 24 February 1923).
Hudal became the Austrian front line for Austria, the Austrian bishops' conference, and Austrian prestige in the Vatican, as German groups attempted to regain the Anima. Pope Pius XI supported Hudal, while simultaneously rejecting an Austrian request to subordinate German pastoral care to the Austrian Hudal.
In 1924, Hudal, in a Vatican ceremony in the presence of Pope Pius XI, Cardinal Secretary of State Pietro Gasparri and numerous cardinals, delivered a commendatory address of Pastor, commemorating the 40th anniversary of Pastor's History of the Popes From the Close of the Middle Ages. Thus Hudal was established within the Vatican as the leading Austrian Church representative, a position which he enjoyed until the publication of his controversial book on Nazism.
In April 1938, Hudal helped organise a vote of German and Austrian clerics at the German college of Santa Maria dell'Anima, over the question of the German annexation of Austria ("Anschluss"). The vote took place on the German heavy cruiser Admiral Scheer, anchored in the Italian harbour of Gaeta. Contrary to the overall German result, these votes rejected the Anschluss with over 90%, an incident named the "Shame of Gaeta" (Italian: Vergogna di Gaeta; German: Schande von Gaeta) at the time.
Winds of nationalism and conspiracies
His invective against Jews became more frequent, linking the so-called "Semitic race" - which allegedly "sought to set itself apart and dominate" - with the nefarious movements of democracy and internationalism and even denouncing an alleged Jewish bankers' conspiracy to become "the financial masters of the Eternal City". His opportunism and duplicity were patent in several moves he made at the time; for example, he wrote a preface to an Italian biography of Engelbert Dollfuss in 1935 without mentioning that the Austrian politician had been murdered by Austrian Nazis during a coup attempt in the previous year.
Bolshevism and Liberalism as enemies
Hudal was a committed anti-Communist, and also opposed Liberalism. Before Nazism, he was already critical of Parliamentary governance. His ideas were similar to the political and economic ideas of such fascist politicians as Dollfuss and Kurt Schuschnigg (Austria), Franz von Papen (Germany), Salazar (Portugal), and, less clearly, of Benito Mussolini (Italy). According to an author, "Hudal squarely fitted into a formula current at the time, the category of Clerical-Fascism." Don Luigi Sturzo, the exiled Italian Catholic priest and Christian Democrat leader coined the term 'Clerical-Fascism' in the mid-20s to refer specifically to the faction of the Catholic party Italian People's Party (Partito Popolare Italiano-PPI) who chose to support Mussolini. It was used afterwards to describe various authoritarian situations and regimes supported by members of the hierarchy of the Catholic Church, including Dollfuss's politics and Austrofascism.
Hudal was most concerned with the rise of the international Communist movement and worker parties in Austria. Fear of "Bolshevism" was his starting point, but this feeling turned into an aggressive political doctrine towards Russia: "Essential to understanding Hudal's politics is his fear that Bolshevist military forces would invade Italy through Eastern Europe or the Balkans and would be unstoppable until they destroyed the Church. Like many within the Church, he embraced the bulwark theory, which placed hope in a strong German-Austrian military shield to protect Rome. This protection involved a pre-emptive attack on communism, Hudal believed, and so he felt an urgent need for a Christian army from Central Europe to invade Russia and eliminate the Bolshevist threat to Rome".
However, Communism was not his sole concern about Russia. He was concerned with Eastern Christianity as well. Hudal's long-term goals were "the reunification of Rome with the Eastern Orthodox Church and the conversion of the Balkans from the Serbian Orthodox Church to Catholicism". He expected that the invasion of the Soviet Union by European forces would serve these aims. Since Pope Benedict XV and the Russian Revolution of 1917, which crushed the Russian Orthodox Church and was regarded by Catholics as a historical opportunity to help Russian Christians with aid "and conversion", Rome was anxious about ending the thousand-year East-West Schism that separated Christianity.
"Good" and "bad" National Socialism
Hudal is said to have received a Golden Nazi Party membership badge, but this is disputed. In 1937, in Vienna, Hudal published a book entitled The Foundations of National Socialism, with an imprimatur from Archbishop Innitzer, which was an enthusiastic endorsement of Hitler. Hudal sent Hitler a copy with a handwritten dedication praising him as "the new Siegfried of Germany's greatness".
The book was not allowed to circulate in Germany by the Nazis although not officially banned. During the Nuremberg trials, Franz von Papen declared that Hudal's book had "very much impressed" Hitler, whose "anti-Christian advisers" were allegedly to blame for not allowing a free German edition. "All I could obtain was permission to print 2,000 copies, which Hitler wanted to distribute among leading Party members for a study of the problem", von Papen claimed.
Hudal was critical of the works of several Nazi ideologues, like Alfred Rosenberg or Ernst Bergmann, who despised Christianity and considered it "alien to Germanic genius". The condemnation by the Holy Office of Rosenberg's The Myth of the Twentieth Century in 1934 and, shortly thereafter, of Bergmann's The German National Church had been based on Hudal's assessment of both works.
In his own 1937 book, Hudal proposed a reconciliation and a pragmatic compromise between Nazism and Christianity, leaving the education of youth to the Churches, while the latter would leave politics entirely to National Socialism. This had been the line followed by German Catholic politician and former Reich Chancellor Franz von Papen. In the autumn of 1934, Hudal had personally explained this strategy to Pius XI: the "good" ought to be separated from the "bad" in National Socialism. The bad - Rosenberg, Bergmann, Himmler and others - according to Hudal represented the "left wing" of the Nazi party. The Nazi "conservatives", headed, he believed, by Hitler, should be directed toward Rome, Christianized and used against the Communists and the Eastern danger. Hitler's book, Mein Kampf was never put on the Index by Rome, as censors continually postponed and eventually terminated its examination, balking at taking on the chancellor of Germany.
By 1935, Hudal had become influential in creating a proposed list of "errors and heresies" of the "era", containing several racist errors of Nazi politicians, the Nuremberg laws, but also condemning several quotes directly taken from Mein Kampf; this list was accepted by Pope Pius XI as an adequate condemnation, but he wanted an encyclical rather than a mere syllabus. Three years later, in June 1938, the Pope ordered American Jesuit John La Farge to prepare an encyclical condemning antisemitism, racism and the persecution of Jews, which he did together with fellow Jesuits t Gustav Gundlach (Germany) and Gustave Desbuquois (France), resulting in a draft for an encyclical which was on Pius XI's desk when he died, but was never promulgated by Pius XII.
Rosenberg's reaction to Hudal's ideas was violent, and the circulation of the Foundations of National Socialism was restricted in Germany. "We do not allow the fundaments of the Movement to be analyzed and criticized by a Roman Bishop", said Rosenberg. In 1935, even before he wrote the Foundations of National Socialism Hudal had said about Rosenberg: "If National Socialism wants to replace Christianity by the notions of race and blood, we will have to face the greatest heresy of the twentieth century. It must be rejected by the Church as decisively as, if not more severely than [...] the Action Française, with which it shares some errors. But Rosenberg's doctrine is more imbued with negation and creates, above all in the youth, a hatred against Christianity greater than that of Nietzsche".
Despite the restrictions imposed on his book, and despite National Socialist restrictions against German monasteries and parishes, and attempts by the Nazi government to forbid Catholic education at schools, going as far as banning the crucifix in schools and other public areas (the Oldenburg crucifix struggle of November 1936), and despite the Nazi dissolution and confiscation of Austrian monasteries and the official banning of Catholic newspapers and associations in Austria ("Ostmark"), Hudal remained close to some Nazi officials, as he was convinced that the Nazi new order would nevertheless prevail in Europe due to its "force".
Hudal was particularly close to von Papen, who as the Reich's ambassador in Vienna prepared the German-Austrian agreement of 11 July 1936, which some claim paved the way for the Anschluss. This agreement was backed by Hudal in the Austrian press, against the position of several Austrian Bishops. The former Centre politician von Papen, who was considered dangerous and disliked by the Nazis for his Catholicism, was later sent to the German Embassy in Ankara.
When, in 1937, Hudal published his book on the foundations of National Socialism Church authorities were upset because of his deviation from Church policy and teachings. Hudal, without mentioning names, had openly questioned the Vatican policy of Pope Pius XI and Eugenio Pacelli towards National Socialism, which culminated in the encyclical Mit brennender Sorge, in which the Vatican openly attacked National Socialism. The 1937 Hudal book froze his steady rise in Rome and resulted in his leaving the city after the war. His publication like his two previous, Rom, Christentum und deutsches Volk (1935) and Deutsches Volk und christliches Abendland (1935) did not have an Imprimatur or ecclasiastical approval, which was another reason for the cooling of relations with the Vatican. Hudal had proposed a "truly Christian National Socialism": education and church affairs would be controlled by the Church, while political discourse would remain exclusively National Socialist.
The Nazis had no intention of giving up education to the Church. Together - according to Hudal - Church and state in Germany would fight against Communism. Hudal saw a direct link between Jews and Marxism, lamenting their alleged dominance in academic occupations, and supporting segregation legislation against Jews in order to protect against foreign influence.
Break with the Vatican
Hudal, previously a popular and influential guest in the Vatican, lived from 1938 on in isolation in the Anima College. This position he was forced to resign in 1952. Hudal's 1933 promotion to Bishop has been cited as evidence that he had close ties to members of the Roman Curia, particularly Cardinal Merry del Val (who died in 1930), and Cardinal Secretary of State Eugenio Pacelli, the future Pius XII, who had been Papal Nuncio in Germany. His close relationship with Pacelli and Pius XI stopped immediately after the publication of his book in 1937, which was seen as contradicting Mit brennender Sorge and the 1933 Reichskonkordat.
Hudal during World War II
Hudal's exile within Rome continued during World War II. He continued as pastoral head of the Anima Church and College but had no position in the Vatican and no access to Pope Pius XII or his senior staff. The French Jesuit historian, Fr. Pierre Blet, co-editor of Acts and Documents, mentioned Hudal only once, stating that the pope's nephew Carlo Pacelli saw Hudal and after this meeting, Hudal wrote to the military governor of Rome, General Stahel, and urged him to suspend all actions against Jews. The Germans suspended the actions "out of the consideration for the special character of Rome".
According to another author, however, the idea of Hudal's intervention came from the German ambassador himself, who asked the rector of the Anima to sign a letter to the military commander of Rome, General Reiner Stahel, requesting that the arrests be halted, otherwise the pope would take a position in public against the arrests and the German occupiers. Ambassador Weizsäcker argued that he had chosen this ruse because Hitler might have reacted against the Vatican and the Pope if it had been the German embassy conveying the warning, instead of the Nazi-friendly bishop.
During the war Hudal sheltered victims of the Nazis at Santa Maria dell'Anima, used by the Resistance. Brigadier general John Burns, a New Zealander, gave a description of it when recalling his escape from an Italian POW-camp in 1944.
According to several sources, Hudal may have been a Vatican-based informer to German intelligence under the Nazi regime, either the Abwehr of Wilhelm Canaris or the RSHA. Vatican historian Fr. Robert Graham SJ held that view more in his book Nothing Sacred. Several other authors mention his contacts in Rome with SS intelligence chief Walter Rauff. In September 1943, Rauff was sent to Milan, where he took charge of all Gestapo and SD operations throughout northwest Italy. Hudal is said to have met Rauff then and to have begun some cooperation with him that was useful afterwards in the setting up of an escape network for Nazis, including for Rauff himself. After the war Rauff escaped from a prisoner camp in Rimini and "hid in a number of Italian convents, apparently under the protection of Bishop Alois Hudal", eventually finding safe haven in Syria, Egypt, and later in Chile.
After 1945, Hudal continued to be isolated from the Vatican. In his native Austria, his pro-Nazi book was now openly discussed and critiqued. In 1945, Allied-occupied Austria forced Hudal to give up his Graz professorship; however Hudal appealed on a technicality and regained it two years later.
After 1945, Hudal gained notoriety by working on the ratlines, helping former Nazis and Ustasha families to find safe haven in overseas countries. He viewed it as "a charity to people in dire need, for persons without any guilt who are to be made scapegoats for the failures of an evil system." He used the services of the Austrian Office (Österreichisches Bureau) in Rome, which had the necessary cards ("Carta di riconoscimento"), for migration mainly to Arab and South American countries.
It is unclear whether he was an official appointee of the Papal refugee organization Pontificia Commissione di Assistenza (PCA) ('Pontifical Commission of Assistance') or whether he acted as de facto head of the Catholic Austrian community in Rome. He is credited with helping, networking and organising the escape of war criminals such as Franz Stangl, commanding officer of Treblinka. Stangl told Gitta Sereny that he went looking for Hudal in Rome as he had heard that the bishop was helping all Germans. Hudal arranged quarters in Rome for him until his "Carta di riconoscimento" came through, then gave him money and a visa to Syria. Stangl left for Damascus, where the bishop found him a job in a textile factory.
Other prominent Nazi war criminals allegedly helped by the Hudal network were SS Captain Eduard Roschmann, known as the "Butcher of Riga", Josef Mengele, the "Angel of Death" at Auschwitz, Gustav Wagner, commanding officer of Sobibor, Alois Brunner, organizer of deportations from France and Slovakia to German concentration camps, and Adolf Eichmann, the man in charge of running the murder of European Jewry.
In 1994 Erich Priebke, a former SS Captain, told Italian journalist Emanuela Audisio, La Repubblica, that Hudal helped him reach Buenos Aires, verified by church historian Robert Graham, a Jesuit priest from the United States. In 1945, Hudal gave refuge to Otto Wächter.
From 1939 onward, as governor of the Cracow district, Wächter organized the persecution of the Jews and ordered the establishment of the Cracow Ghetto in 1941. Wächter is mentioned as one of the leading advocates in the General Government who were in favor of the Jewish extermination by gassing and as a member of the SS team who under Himmler's supervision and Odilo Globocnik's direction planned Operation Reinhard, the first phase of the Final Solution, leading to the death of more than 2,000,000 Polish Jews. After the war, Wächter lived in a Roman monastery "as a monk", under Hudal's protection. Wächter died on 14 July 1949 in the Santo Spirito hospital in Rome.
While his official status was minor, Hudal clearly played a role in the rat line. In 1999, Italian researcher Matteo Sanfilippo revealed a letter drafted on 31 August 1948 by Bishop Hudal to Argentinian President Juan Perón, requesting 5,000 visas, 3,000 for German and 2,000 for Austrian "soldiers". In the letter, Hudal explained that these were not (Nazi) refugees, but anti-Communist fighters "whose wartime sacrifice" had saved Europe from Soviet domination.
According to Argentine researcher Uki Goñi, the documents he uncovered in 2003 show the Roman Catholic Church was also deeply involved in the secret network. "The Perón government authorized the arrival of the first Nazi collaborators [in Argentina], as a result of a meeting in March 1946 between Antonio Caggiano, a [newly elevated] Argentine cardinal, and Eugène Tisserant, a French cardinal attached to the Vatican".
After the war, Hudal was one of the main Catholic organizers of the ratline nets, along with Monsignor Karlo Petranović, himself an Ustasha war criminal who fled to Austria and then to Italy after 1945, Father Edward Dömöter, the Franciscan of Hungarian origin who forged the identity of Eichmann's passport, issued by the Red Cross in the name of Ricardo Klement, and Father Krunoslav Draganović, a Croatian professor of Theology.
Draganović, a smuggler of fascist and Ustasha war criminals who had also been involved in pro-Fascist espionage, was recycled by the U.S. during the Cold War – his name appears in the Pentagon payrolls in the late 1950s and early 1960s – and was eventually granted immunity, ironically, in Tito's Yugoslavia, where he died in 1983 at age 79. Monsignor Karl Bayer, Rome's Director of Caritas International after the war, also cooperated with this ring. Interviewed in the 1970s by Gitta Sereny, Bayer recalled how he and Hudal had helped Nazis to South America with the Vatican's support: "The Pope [Pius XII] did provide money for this; in driblets sometimes, but it did come". Hudal's ratline was supposedly financed by his friend Walter Rauff, with some funds allegedly coming from Giuseppe Siri, the recently appointed Auxiliary Bishop (1944) and Archbishop (1946) of Genoa. Siri was regarded as "a hero of the Resistance movement in Italy" during the German occupation of northern Italy. Siri's involvement remains unproven.
According to Uki Goñi, "some of the financing for Hudal's escape network came from the United States", precising that the Italian delegate of the American National Catholic Welfare Conference provided Hudal "with substantial funds for his 'humanitarian' aid". Since the works of Graham and Blet were published, historian Michael Phayer, a professor at Marquette University, has alleged the close collaboration between the Vatican (Pope Pius XII and Giovanni Battista Montini, then "Substitute" of the Secretariat of State, and later Paul VI), on the one side and Draganović and Hudal on the other, and has claimed that Pius XII himself was directly engaged in ratline activity. Against these allegations of the direct involvement of Pope Pius XII and his staff, there are some opposing testimonies and the denial by Vatican officials of any involvement of Pius XII himself. But according to Phayer, Bishop Aloisius Muench, an American and Pius XII's own envoy to occupied western Germany after the war, "wrote to the Vatican warning the pope to desist from his efforts to have convicted war criminals excused". The letter, written in Italian, is extant in the archives of Catholic University of America.
In his posthumously published memoirs, Hudal instead recalls with bitterness the lack of support he found from the Holy See to give to Nazi Germany's battle against "godless Bolshevism" at the Eastern Front. Hudal several times in this work claims to have received criticism of the Nazi system rather than support for it from the Vatican diplomats under Pius XII. He assumed that the Holy See's policy during and after the war was entirely controlled by the western Allies. Until his death Hudal was convinced he had done the right thing, and said that he considered saving German and other fascist officers and politicians from the hands of Allied prosecution, a "just thing" and "what should have been expected of a true Christian", adding: "We do not believe in the eye for an eye of the Jew."
Hudal said the justice of the Allies and the Soviets had resulted in show trials and lynchings, including the major trials at Nuremberg. In his memoirs he developed a curious theory about the economic causes of World War II, which allowed him to plainly justify for himself his acts in favour of Nazi and Fascist war criminals:
"The Allies' War against Germany was not a crusade, but the rivalry of economic complexes for whose victory they had been fighting. This so-called business ... used catchwords like democracy, race, religious liberty and Christianity as a bait for the masses. All these experiences were the reason why I felt duty bound after 1945 to devote my whole charitable work mainly to former National Socialists and Fascists, especially to so-called 'war criminals'".
Resignation and death
Hudal's activities caused a press scandal in 1947, after he was accused of leading a Nazi smuggling ring by the Passauer Neue Presse, a Catholic newspaper, but, as in 1923, playing the Austrian versus the Vatican and German cards, he only resigned as rector of Santa Maria dell'Anima in 1952, under joint pressure from the German and Austrian bishops and the Holy See. In January 1952, the Bishop of Salzburg told Hudal that the Holy See wanted to dismiss him. In June Hudal announced to the cardinal protector of Santa Maria dell'Anima that he had decided to leave the College, though disapproving of the Church allegedly being governed by the Allies. He resided afterwards in Grottaferrata, near the city of Rome, where in 1962 he wrote his embittered memoirs called Römische Tagebücher, Lebensbeichte eines alten Bischofs (Roman Diaries, Confessions of an Old Bishop), published posthumously in 1976.
Until his death in 1963, he never gave up in trying to obtain an amnesty for Nazis. Despite his protests against anti-Semitism in the 1930s, in his memoirs, with full knowledge of the Holocaust as of 1962, the "Brown Bishop" said of his actions in favour of war criminals and genocide perpetrators and participants: "I thank God that He opened my eyes and allowed me to visit and comfort many victims in their prisons and concentration camps and [to help] them escape with false identity papers" — however, the "victims" were Axis prisoners of war and their "concentration camps" were Allied detention camps.
After he was banned from Rome by the Vatican of Pope Pius, he withdrew to his sumptuous residence in Grottaferrata near Rome, embittered towards Pius XII. He died in 1963. His diaries were published in Austria thirteen years after his death and describe perceived Vatican injustices he experienced under Pius XI and Pius XII after the publication of his book. Hudal maintained the opinion that a Faustian bargain between socialism, nationalism and Christianity is the way of the future.
Selected works of Alois Hudal
- Soldatenpredigten (Graz, 1917) - Sermons to the Soldiers.
- Die serbisch-orthodoxe Nationalkirche (Graz, 1922) - The Serbian Orthodox National Church.
- Vom deutschen Schaffen in Rom. Predigten, Ansprachen und Vorträge, (Innsbruck, Vienna and München, 1933) - On the German Work in Rome. Sermons, Speeches and Lectures.
- Die deutsche Kulturarbeit in Italien (Münster, 1934) - The German Cultural Activity in Italy.
- Ecclesiae et nationi. Katholische Gedanken in einer Zeitenwende (Rome, 1934) - The Church and the Nations. Catholic Thoughts in the Turn of an Era.
- Rom, Christentum und deutsches Volk (Rome, 1935) - Rome, the Christendom and the German People.
- Deutsches Volk und christliches Abendland (Innsbruck, 1935) - The German People and the Christian Occident.
- Der Vatikan und die modernen Staaten (Innsbruck, 1935) - The Vatican and the Modern States.
- Das Rassenproblem (Lobnig, 1935) - The Race Problem.
- Die Grundlagen des Nationalsozialismus: Eine ideengeschichtliche Untersuchung (Leipzig and Vienna, 1936–37 and facsimile edition Bremen, 1982) - The Foundations of National Socialism.
- Nietzsche und die moderne Welt (Rome, 1937) - Nietzsche and the Modern World.
- Europas religiöse Zukunft (Rome, 1943) - The Religious Future of Europe.
- Römische Tagebücher. Lebensbeichte eines alten Bischofs (Graz, 1976) - Diaries of Rome. The Confession of Life of an Old Bishop.
- Michael Phayer, "Canonizing Pius XII. Why did the pope help Nazis escape?", Commonweal, May 9, 2003 / Vol. CXXX (9).
- Phayer, Michael (2000). The Catholic Church and the Holocaust, 1930–1965. Bloomington, IN: Indiana University Press.
- Ronald J. Rychlak, Hitler, the War, and the Pope, Revised and Expanded Edition, South Bend, IN: Our Sunday Visitor, 2010.
- Robert Katz, Dossier Priebke. Anatomia di un processo, Milano, Rizzoli, 1996.
- Marcus Langer, Alois Hudal, Bischof zwischen Kreuz und Hakenkreuz. Versuch eine Biographie (Bishop Alois Hudal : Between Cross and Swastika. Attempt at a biography), PhD thesis, Vienna, 1995.
- Johan Ickx, "The Roman 'non possumus' and the Attitude of Bishop Alois Hudal towards the National Socialist Ideological Aberrations", in: L. Gevers & J. Bank (eds.), Religion under Siege. The Roman Catholic Church in Occupied Europe (1939–1950), I (Annua Nuntia Lovaniensia, 56.1), Löwen, 2008, 315 ff.
- Gerald Steinacher, Nazis on the Run. How Hitler's Henchmen Fled Justice. Oxford University Press, 2011.
- According to Goñi, Monsignor Petranović "was himself a war criminal and Ustasha captain who had been deputy to the local Ustasha leader at Ogulin, a district that saw the extermination of some 2,000 Serbs during the war ... The Monsignor organized and instigated many of these murders, personally directing the arrest and execution of 70 prominent Serbs." A request for his extradition by Yugoslavia "was ignored by the British authorities in 1947"
- In 1959-1960, for example, Hudal's correspondence shows his efforts to obtain an amnesty in Greece and West Germany
- In 1949, Hudal was labeled in German "church circles" as the "brauner Bischof", according to the German newspapers Nord Press (December 6, 1949, p. 4) and the above-cited Passauer Neue Press (December 13, 1949, p. 3).
- Godman (2004), p. 44
- See "Collegio Teutonico di Santa Maria dell’Anima" (in German) de:Collegio Teutonico di Santa Maria dell’Anima.
- Hudal (1976), p. 41, cited by Chenaux (2003).
- von Pastor (1950), p. 744
- von Pastor (1950), p. 764
- von Pastor (1950), p. 766
- von Pastor (1950), p. 805
- von Pastor (1950), p. 806
- von Pastor (1950), p. 787
- See Martin Lätzel (2003). "Hudal, Alois C.". In Bautz, Traugott. Biographisch-Bibliographisches Kirchenlexikon (BBKL) (in German). 21. Nordhausen: Bautz. cols. 687–692. ISBN 3-88309-110-3. and Godman (2004).
- Godman (2004), p. 45, citing Hudal's Ecclesiae et nationi..., 1934.
- Godman (2004), p. 45, quoting Hudal's Vom deutschen Schaffen in Rom. Predigten, Ansprachen und Vorträge, 1933.
- Godman (2004), p. 46
- Whitlock (2003)
- Stehle (1981)
- Karlheinz Deschner, Ein Jahrhundert Heilsgeschichte, vol. II, Leck, 1983, pp. 135, 139.
- Klee (1991)
- Nuremberg Trials Proceedings (vol. 16, p. 285), yale.edu; accessed 14 January 2016.
- Godman (2004), p. 51, citing E. Bergmann's Die deutsche Nationalkirche (The German National Church), Breslau, 1933.
- Godman (2004)
- Godman (2004), p. 53, citing Hudal (1976).
- Heneghan, Tom."Secrets Behind The Forbidden Books", americamagazine.org, 7 February 2005.
- Wolf (2005), p. 1ff
- Cited by Aarons & Loftus (1991), p. 31.
- A. Hudal, Das deutsche Volk und christliches Abendland, p. 24, cited by Whitlock (2003).
- Chenaux (2003)
- Hudal (1937)
- Hudal (1937), p. 250
- Hudal (1976), p. 17
- Hudal (1937), pp. 86, 92
- Hudal (1937), p. 87
- Hudal (1937), p. 88
- Blet (1997), p. 216
- Kurzman (2007), pp. 183–85
- Burns, John. , Life is a Twisted Path, Rome (2002).
- Graham & Álvarez (1998)
- On Hudal as a German spy, see also Voigt (1989).
- "5 September 2005 releases: German intelligence officers", mi5.gov.uk; accessed 14 January 2015.
- "Opening of CIA Records under Nazi War Crimes Disclosure Act", National Archives, Press Release, 8 May 2002.
- Hudal (1976), p. 44
- Hudal (1976), p. 22
- Hudal (1976), p. 34
- Sereny (1974)
- Sereny (1974), p. 289
- Phayer (2007), p. 195ff
- Goñi (2002)
- Fr. Graham statements to ANSA news agency, 10 May 1994, cited by Goñi (2002), p. 261, and note 453
- "1938: NS-Herrschaft in Österreich" (1938: The Nazi Rule in Austria)
- O'Neil, Robin.Belzec: Prototype for the Final Solution (chapters 5 and 10), jewishgen.org; accessed 14 January 2016.
- Klee (2003)
- Hudal (1976), pp. 162–163.
- Sanfilippo (1999)
- Goñi (2002), p. 229
- Larry Rohter (7 March 2003). "Argentina, a Haven for Nazis, Balks at Opening Its Files". New York Times.
- "Argentina, a Haven for Nazis, Balks at Opening Its Files", archive.org; accessed 14 January 2016.
- Goñi (2002), pp. 235–36
- Goñi (2002), p. 235
- "Un frate francescano firmò la fuga di Genova di Eichmann", Il Secolo XIX, August 14, 2003, p. 4.
- Goñi (2002), pp. 229–251
- Aarons & Loftus (1991), pp. 39–40
- "24 Hats". Time Magazine. 8 December 1952. Retrieved 14 January 2016.
- Goñi (2002), p. 230
- Phayer, Michael. "The Author replies", Commonweal, 6 June 2003.
- Hudal (1976), p. 21
- Hudal (1976), pp. 220–254
- Hudal (1976), English translation quoted in Whitlock (2003).
- Hudal (1976)
- Hudal (1976), p. 14
- Aarons, Mark; Loftus, John (1991). Unholy Trinity. New York: St. Martin's Press.
- Blet, Pierre (1997). Pius XII and the Second World War: According to the Archives of the Vatican. New York: Paulist Press.
- Chenaux, Philippe (2003). "Pacelli, Hudal et la question du nazisme 1933–1938". Rivista di Storia della Chiesa in Italia. 57 (1): 133–54. JSTOR 43050086.
- Godman, Peter (2004). Hitler and the Vatican. New York: Free Press.
- Goñi, Uki (2002). The Real Odessa. How Perón Brought the Nazi War Criminals to Argentina. London, UK: Granta.
- Graham, Robert A.; Álvarez, David (1998). Nothing Sacred: Nazi Espionage against the Vatican, 1939–1945. London, UK: Frank Cass.
- Hudal, Alois (1937). Die Grundlagen des Nationalsozialismus: eine ideengeschichtliche Untersuchung. Leipzig & Vienna.
- Hudal, Alois (1976). Römische Tagebücher. Lebensbeichte eines alten Bischofs [Roman Diaries. The Confession of Life of an Old Bishop] (in German). Graz.
- Klee, Ernst (1991). Persilscheine und falsche Pässe. Wie die Kirchen den Nazis halfen [Whitewash Certificates and False Passports. How the Churches Helped the Nazis] (in German). Frankfurt: Fischer Geschichte.
- Klee, Ernst (2003). Das Personenlexikon zum Dritten Reich. Wer war was vor und nach 1945. Frankfurt am Main: S. Fischer Verlag.
- Kurzman, Dan (2007). "A Special Mission: Hitler's Secret Plot to Seize the Vatican and Kidnap Pope Pius XII". Cambridge: Da Capo Press.
- Phayer, Michael (2007). TPius XII, the Holocaust, and the Cold War. Bloomington, IN: Indiana University Press.
- Sanfilippo, Matteo (1999). "Los papeles de Hudal como fuente para la historia de la migración de alemanes y nazis después de la segunda guerra mundial" [Hudal's papers as a source for the history of the migration of Germans and Nazis after World War II]. Estudios Migratorios Latinoamericanos (in Spanish). 43: 185–209.
- Sereny, Gitta (1974). "Into that Darkness". London, UK: Deutsch.
- Stehle, Hansjakob (1981). Eastern Politics of the Vatican 1917–1979. Athens, OH: Ohio University Press. ISBN 9780821403679.
- Voigt, Klaus (1989). Zuflucht auf Widerruf. Exil in Italien 1933–1945 [Precarious refuge. Exile in Italy 1933–1945] (in German). I. Stuttgart: Klett-Cotta.
- von Pastor, Ludwig (1950). Tagebücher, Briefe Erinnerungen. Heidelberg.
- Whitlock, Greg (2003). "Alois Hudal: clero-fascist Nietzsche critic". Nietzsche-Studien. 32: 259–95. doi:10.1515/9783110179200.259.
- Wolf, Hubert (2005). "Pius XI. und die 'Zeitirrtümer'. Die Initiativen der römischen Inquisition gegen Rassismus und Nationalismus" (PDF). Vierteljahrshefte für Zeitgeschichte. 53 (1): 1–42.
- "Krunoslav Draganovic", in The Pavelic Papers
- Erika Weinzierl, Kirche und Nationalsozialismus, with photos of Hudal, Archbishop Innitzer and fac-simile of several documents concerning the Anschluss, namely a welcome letter by the Austrian Bishops collectively (The "Solemn Declaration" of March 18, 1938) and a letter to the Gauleiter by Archbishop Innitzer individually, with the famous final handwritten phrase: "und Heil Hitler!".
- "Luigi Hudal, bishop of Aela" (Hudal's position in the Catholic hierarchy).
- Martin Lätzel (2003). "Hudal, Alois C.". In Bautz, Traugott. Biographisch-Bibliographisches Kirchenlexikon (BBKL) (in German). 21. Nordhausen: Bautz. cols. 687–692. ISBN 3-88309-110-3.
- Dominik Burkard, "Alois Hudal – ein Anti-Pacelli? Zur Diskussion um die Haltung des Vatikans gegenüber dem Nationalsozialismus", Zeitschrift für Religions und Geistesgeschichte, Volume 59 (1), January 2007.
- Vatican Radio, Symposium on Bishop Hudal, 2006.