1922, also eastern Upper Silesia was transferred from Weimar Germany to the Second Polish Republic on 20 June the same year and formed together with the Polish Cieszyn Silesia part of the new Polish Autonomous Silesian Voivodeship. On 7 November 1922 the Holy See disentangled the Catholic parishes in the new voivodeship from the Breslau diocese and subordinated them to an Apostolic Administrator on 17 December the same year. On 28 October 1925 Pope Pius XI elevated that apostolic administration to the new diocese of Katowice with Bishop August Hlond, then a suffragan of Kraków, by the papal Bull Vixdum Poloniae Unitas. According to the Prussian Concordat of 1929 the prior exempt Bishopric of Breslau was elevated to the rank of archdiocese in 1930 and was henceforth known as the Archbishopric of Breslau, then supervising the Eastern German Ecclesiastical Province comprising Breslau proper and three suffragans, to wit the new diocese of Berlin, comprising the former Prince-Episcopal Delegation for Brandenburg and Pomerania, the formerly exempt Diocese of Ermland (Warmia), and the new Territorial Prelature of Schneidemühl (Piła). Within Poland (main part), Czechoslovakia and East Germany (lesser parts) After World War II, the city of Breslau became again part of Poland under its historic Polish name Wrocław. On 21 June 1945, the Archbishop, Cardinal Adolf Bertram, while staying in the episcopal castle of Jánský Vrch in Czechoslovak Javorník, appointed František Onderek (1888–1962) as vicar general for the Czechoslovak part of the archdiocese. Bertram died on 6 July 1945 in Jánský Vrch castle in Czechoslovakia, supposedly due to the Polish demands upon him (an ethnic German, who, however, had pleaded for German-Polish reconciliation during the time of Piłsudski's rule). Expelled, deported, German ex-Silesians from West Germany have since ca. 1946 entertained claims that Bertram was actually killed or brought near to death by Polish "imperialists" inside the Catholic Church of Poland. On 16 July 1945 the archdiocesan chapter, still comprising nine members, elected the Polish-speaking Ferdinand Piontek as capitular vicar, whom the Gestapo had banned from Breslau in early February 1945. On his return to the town he was sworn in by the chapter on 23 July. On 12 August 1945 Cardinal August Hlond appeared and demanded Piontek to resign from his office for the archdiocesan territory east of the Oder-Neisse line, claiming to act on the authority of papal mandates, however, only applying to the pre-war territory of Poland. So Piontek