Title: Maximilian Kaller
Content:   Maximilian Kaller (10 October 1880 – 7 July 1947) was Roman Catholic Bishop of Ermland (Warmia) in East Prussia from 1930–1947, however, de facto expelled since mid-August 1945 he served as special bishop for the homeland-expellees until his death.
Title: Maximilian Kaller
Content:  Kaller was born in Beuthen (Bytom), Prussian Silesia into a merchant family as the second of altogether eight children. With the population of Beuthen being of German and Polish ethnicity he grew up bilingual in German and Polish language. He graduated from Gymnasium in 1899 with Abitur. Then he started theological studies in Breslau (today's Wrocław) at the episcopal see of his then home Prince-Bishopric of Breslau. There he was consecrated priest in 1903. He first served as chaplain at the parish of Groß Strehlitz (today's Strzelce Opolskie) in the Breslau diocese. Between 1905 and 1917 he practised as missionary priest at St. Boniface parish in Bergen on Rügen island in the Hither Pomeranian Catholic diaspora within Breslau's Prince-Episcopal Delegation for Brandenburg and Pomerania. He accomplished raising the necessary donations to erect St. Boniface Church there in 1912. Since 1917 Kaller served as priest at Berlin's second oldest Catholic Church, Saint Michael's Garrison Church.
Title: Maximilian Kaller
Content:  Kaller found asylum in what would become Bizone in 1947. On 26 September 1946 Pius XII appointed Kaller Papal Special Commissioner for the homeland-expelled Germans (Päpstlicher Sonderbeauftragter für die heimatvertriebenen Deutschen). In November 1946 Pius XII invited Kaller to Rome, both were personally acquainted since their common time in Berlin (Pius as Nuncio to Germany and Kaller as priest), and the latter reported the pope on the destitute situation of the expellees from eastern Europe. On 7 July 1947, Kaller died suddenly of a heart attack in Frankfurt upon Main and was buried besides St. Mary's Church in Königstein in the Taunus.
Title: Maximilian Kaller
Content:  Kaller consecrated the new diocesan seminary for priests in Braunsberg in East Prussia (today's Braniewo). Under his jurisdiction Ermland diocese issued a new diocesan hymnal and a diocesan rituale (cf. Rituale Romanum) in Latin and the three native languages usual among the diocesan parishioners, to wit German, Lithuanian, and Polish. Kaller was also appointed apostolic visitator to the then 8,000 Catholic faithful in Memelland, a Lithuanian-annexed formerly East Prussian area, whose then four Catholic parishes had been seceded from Ermland diocese and subsequently formed part of the Territorial Prelature of Memel (Klaipėda); Freie Prälatur Memel; Klaipėdos prelatūra; Praelatura Territorialis Klaipedensis) existing between 1926 and 1991. Kaller and other members of the German Catholic and Protestant Churches formulated their opposition to the policy of Nazi 
Title: Maximilian Kaller
Content:  In July 1979 Kaller's successor Warmia's Bishop Józef Glemp visited Straelen, where he had earlier improved his German. On his further way to Nuremberg Glemp stopped in Königstein to visit Kaller's grave. On 10 October 1980, Kaller's 100th birthday, Glemp celebrated a pontifical requiem in honour of Kaller in Frombork's Archcathedral Basilica of the Assumption of the Blessed Virgin Mary and St. Andrew, Frombork, commemorating in his preach Kaller's personality as priest and his benedictory work for the diocese. In 1997, Archbishop Edmund Michał Piszcz of Warmia and the community of Ermlanders in Western Germany commemorated Kaller and placed busts of him in Germany and Poland. On 4 May 2003 the procedure for his beatification started.
Title: Maximilian Kaller
Content:  overcoming the nationalist antagonism between Catholics of German and Polish language, reshaping the diocese in the spirit of German-Polish reconciliation. He appointed Franciszek Borowiec, his close collaborator, as new vicar general for the Diocesan area under Polish occupation and Paul Hoppe (1900–1988), Königsberg in Prussia (today's Kaliningrad), as vicar general for the diocesan area under Soviet occupation. Kaller further appointed an ethnic Pole as new cathedral provost, since his predecessor Provost Franz Xaver Sander (also official), and five more fellow cathedral canons had been killed by the invading Soviets. Addressing the Polish authorities in the annexed area of his diocese Kaller declared that he wants to continue his episcopate 
Title: Maximilian Kaller
Content:  early on (cf. Struggle of the churches). German clergy who opposed Adolf Hitler or supported refugees were strongly persecuted under the Nazi dictatorship. On 10 June 1939 Pope Pius XII appointed Kaller apostolic administrator of the Territorial Prelature of Memel, after Lithuania had ceded Memelland under German pressure to Nazi Germany in March the same year. In 1942 Kaller applied at Nuncio Cesare Orsenigo to resign from episcopate in order to administer services at Theresienstadt, but his wish was not granted. On 7 February 1945, during World War II, the Nazi Schutzstaffel forced Kaller out of his episcopal office while the Soviet Red Army was overrunning Ermland diocese. Kaller had appointed Frauenburg's Cathedral Dean Aloys Marquardt (1891–1972) as vicar general to the see.
Title: Maximilian Kaller
Content:  he wanted to stay with his diocese in Poland and talked about his plans. Hlond replied that Kaller was no Polish citizen and thus unacceptable as bishop in the Polish area, avoiding the term state, since Ermland diocese was only Polish-occupied German territory. Afterwards in a private conversation Hlond urged Kaller to resign and so he did for the jurisdiction in the Polish-occupied diocesan area, but retained the office of Bishop of Ermland, which rather turned quite void, especially since in the Soviet-occupied diocesan area no Catholic ecclesiastical activity whatsoever was tolerated. Later in Poznań Hlond praised Kaller for how he complied with the demanded resignation from jurisdiction. 
Title: Maximilian Kaller
Content:  Poland, however, the officials said it was neither him nor them, but Warsaw to decide that. Kaller chose four ethnic Poles as canon candidates to replenish the chapter to the end that ethnic Poles and Germans would each have half the seats. With these activities and plans Kaller was unique among the German bishops in the eastern territories. On 14 August he received a telegramme from August Hlond for the expelled Marquardt. Polish Primate Hlond had invited the vicar general for a meeting on the diocesan future to Pelplin, not knowing that the Polish authorities had expelled him, let alone that the deported Kaller had succeeded to return. A 
Title: Maximilian Kaller
Content:  his way back, accompanied by Borowiec, Kaller cried and told him that the jurisdiction in the Polish-occupied diocesan area will be passed on to Teodor Bensch, a German-born naturalised Pole, who would arrive within days officiating as apostolic administrator. They returned home in the evening on 16 August. Kaller could not appoint the four new canons for the chapter any more but was expelled the next day, transferred by lorry to Warsaw, accompanied by Borowiec, who also joined him on the train to Poznań on 18 August. Then Borowiec, who had not been expelled, returned to the diocese, while Kaller had to leave via Stettin for Allied-occupied Germany.

Question: What is the religion of Maximilian Kaller?
Answer: Catholic Church.
Roman Catholic Church.
Church.
Roman Apostolic Catholic Church.