Gniezno and Magdeburg archdioceses competed for expanding their influence into Pomerania, which is why the Holy See determined Cammin to remain exempt.

[5] Kołobrzeg's diocese under Bishop Reinbern[6] was overrun by a pagan revolt just a few years after its establishment and Christianity was reintroduced in the area only in the early 12th century, following military expeditions of Duke Bolesław Wrymouth who once again had tied the Pomeranian lands to Poland.

The territory of pre-1815 Brandenburg (thus without Lower Lusatia) and Prussian Pomerania formed part of the Apostolic Vicariate of the Northern Missions, which in 1821 also comprised seventeen other nations partially or completely.

[11] In Brandenburg and Pomerania the pope, by the Bull "De salute animarum", established a new jurisdiction on the one hand and extended the ambit of the neighbouring Breslau diocese on the other.

of Meissen), seated in Bautzen (Saxony), was reassigned in ecclesiastical respect to the Diocese of Breslau, which itself, comprising territory in Bohemia and Prussia, became exempt in 1821 (previously a suffragan of Gniezno).

[14] Breslau's Prince-Bishop Heinrich Förster (1853–1881) gave generous aid to the founding of churches, monastic institutions, and schools, especially in the diaspora regions.

So Pope Leo XIII appointed as his successor Robert Herzog (1882–86), till then Prince-Episcopal Delegate for Brandenburg and Pomerania and provost of St. Hedwig's Church in Berlin.

Prince-Bishop Herzog made every endeavour to bring order out of the confusion into which the quarrel with the State during the immediately preceding years had thrown the affairs of the diocese.

His office was titled Apostolic Administration of Kamień, Lubusz and the Prelature of Piła (Polish: Administracja Apostolska Kamieńska, Lubuska i Prałatury Pilskiej).

On 27 June 1972, however, – in response to West Germany's change in Ostpolitik and the Treaty of Warsaw – Pope Paul VI reversed the diocesan boundary along the post-war borders.

In 2011, Pope Benedict XVI named Rainer Maria Woelki as Archbishop of Berlin and made him a cardinal shortly afterward.