Roman Catholic Diocese of Chełmno

Diocese of Chełmno

Diecezja chełmińska
Diocese of Chełmno; Diecezja chełmińska
	Former Cathedral in Chełmża
Location
Country	Poland
Ecclesiastical province	Gniezno
Coordinates	53.2°N 18.6°E
Information
Denomination	Catholic
Rite	Latin Rite
Established	1243
Dissolved	1992
Cathedral	Chełmża Cathedral (until 1821); Pelplin Cathedral (1821–1992)

The Diocese of Chełmno (Polish: Diecezja chełmińska; German: Bistum Kulm/Culm) was a Catholic diocese in Chełmno Land, founded in 1243 and disbanded in 1992.^[1]^[2]

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It was founded in 1243 by the papal legate William of Modena in the Monastic state of the Teutonic Knights, along with the three other bishoprics Ermland (Warmia), Samland (in Sambia) and Pomesania. Initially Culm was a suffragan to the Archdiocese of Riga and had its seat in Chełmża (Culmsee), where the cathedral chapter was domiciled till 1824.

Thumb — Remains of the Lubawa Castle, former residence of the Bishops of Chełmno

From 1257 to 1782 the episcopal seat was the castle in Lubawa.
In 1454, the region was reincorporated by King Casimir IV Jagiellon to the Kingdom of Poland.
In 1466, the region was confirmed as part of Poland, and the diocese was agreed to pass to the Archdiocese of Gniezno.^[3]
After 1525 Chełmno incorporated southern parts of the Pomesanian diocesan area (with Łasin and Nowe Miasto), which happened to be in the Chełmno Voivodeship. Whereas western Pomesanian diocesan area in the Malbork Voivodeship was administered by Chełmno, but officially maintaining its naming.
After Riga's dissolution in 1566 the bishops of Chełmno attended the councils of the ecclesiastical province of the metropolitan of Gniezno. This practice was recognised by the Holy See by the Bull De salute animarum in 1821, when Chełmno became de jure a suffragan of the Archdiocese of Gniezno. Chełmno diocese was enlarged on that occasion (Górzno, Krajna and Działdowo).
Annexation of the diocesan area in the First Partition of Poland in 1772 and Second Partition of Poland in 1793 by the Kingdom of Prussia.
From 1782 to 1824 the episcopal seat was in Chełmża.

In 1824, episcopal seat moved to Pelplin.
In 1871, the diocesan area became part of Germany.
Restoration of independent Poland after World War I; reintegration of Chełmno with Poland in 1920.
Pope Pius XI decided to separate 18 parishes in the territory the Free City of Danzig west of the Vistula from the diocese and to establish an Apostolic Administrator of the Free City of Danzig on 24 April 1922, which was directly subordinated to the Pope.^[5]
On 1 May 1923 the Holy See disentangled from the Diocese of Chełmno the deaneries in Bütow (Bytów), Lauenburg in Pomerania (Lębork) as well as those included in the Posen-West Prussia Border March, and transferred them to the new Apostolic Administration of Tütz, later transformed into the Prelature of Schneidemühl (Piła).^[6]
In 1925 a concordat between Poland and the Holy See was signed and the Apostolic Administrator was now supposed to be subordinated to the Nuncio of Warsaw, which caused protests among the local populace. Thus, the Pope established the sui iuris Diocese of Danzig on 30 December 1925 and appointed Edward O'Rourke as the first Bishop on 2 January 1926.^[5] The deanery of Pomesania in that eastern part of West Prussia which remained with Germany after the 1920 East and West Prussian plebiscites was transferred to the Diocese of Warmia in 1925.
As part of the reorganisation of the Catholic Church in the People’s Republic of Poland in 1972, also accounting for changes of political border in 1945, the diocese of Gdansk was enlarged on the expenses of Chelmno diocese, whereas the latter gained parishes previously part of the Berlin diocese and the Prelature of Schneidemühl (Piła)
As part of the reorganisation of the Catholic Church in the Third Polish Republic, the extant Diocese of Chełmno was split in 1992 by Pope John Paul II into the Diocese of Pelplin and the Diocese of Toruń