A co-cathedral is a cathedral church which shares the function of being a bishop's seat, or cathedra, with another cathedral, often in another city. Instances of this occurred in England before the Protestant Reformation in the dioceses of 'Bath and Wells', and of 'Coventry and Lichfield'. These two dioceses were each named for both cities that served as bishop's seats.
An apostolic administration in the Catholic Church is administrated by a prelate appointed by the pope to serve as the ordinary for a specific area. Either the area is not yet a diocese, or is a diocese, eparchy or similar permanent ordinariate that either has no bishop or, in very rare cases, has an incapacitated bishop.
The Archdiocese of Gniezno is the oldest Latin Catholic archdiocese in Poland, located in the city of Gniezno. The ecclesiastical province comprises the suffragan dioceses of Bydgoszcz and Włocławek.
The Catholic Church in Ukraine is part of the worldwide Catholic Church, under the spiritual leadership of the Pope in Rome. Catholics make up 10% of the population of Ukraine.
The Ukrainian (Greek) Catholic Eparchy of Wrocław–Koszalin is a suffragan eparchy in the ecclesiastical province of the metropolis of Przemyśl-Warsaw, which covers some part of Poland for the Ukrainian Greek Catholic Church parallel to the Latin hierarchy. It depends from the Roman Congregation for the Oriental Churches.
The Roman Catholic Archdiocese of Lviv is a Metropolitan archdiocese of the Latin Church of the Catholic Church in western Ukraine.
The Archdiocese of Warmia is a Latin Church Metropolitan archdiocese of the Catholic Church in the Warmian-Masurian Voivodeship, Poland.
The Archdiocese of Białystok is a Latin Church ecclesiastical territory or archdiocese of the Catholic Church in Podlaskie Voivodeship, Northeastern Poland. It is a metropolitan see with two suffragan dioceses.
The Archdiocese of Gdańsk is a Latin Church ecclesiastical jurisdiction or archdiocese of the Catholic Church in Poland. The diocese's episcopal see is Gdańsk.
The Diocese of Koszalin-Kołobrzeg is a Latin Church ecclesiastical jurisdiction of diocese of the Catholic Church in northwestern Poland. The diocese is a suffragan in the ecclesiastical province of the metropolitan Archdiocese of Szczecin-Kamień. The Diocese of Koszalin-Kołobrzeg's cathedral is the Katedra Niepokalanego Poczęcia NMP, in Koszalin. There is also a co-cathedral, the minor basilica Bazylika Konkatedralna Wniebowzięcia NMP, in Kołobrzeg, both in Zachodniopomorskie.
The Diocese of Łowicz is a Latin diocese of the Catholic Church located in the city of Łowicz in the Ecclesiastical province of Łódż in Poland.
The Ukrainian Catholic Archeparchy of Przemyśl–Warsaw is an ecclesiastical territory or ecclesiastical province of the Ukrainian Greek Catholic Church — a particular Eastern Catholic Church, that is located in the south-eastern part of Poland. It was erected in 1996. Its Byzantine Rite services are conducted in the Ukrainian language. As a metropolitan see, it has two suffragan sees: Olsztyn–Gdańsk and Wrocław-Koszalin. The incumbent ordinary of the archeparchy is Eugeniusz Popowicz. It is assisted and protected by the Dicastery for the Eastern Churches in Rome. The cathedral church of the archeparchy is the Cathedral of St. John the Baptist, in the city of Przemyśl. Although the national capital of Warsaw was added to its title, there is no co-cathedral.
The Cathedral of Przemyśl, officially the Cathedral Basilica of the Assumption of the Blessed Virgin Mary and St. John the Baptistin Przemyśl, is a Latin Catholic cathedral in Przemyśl, Poland. It is the main church of the Archdiocese of Przemyśl, located at the Cathedral Square in the Old Town.
The Ukrainian (Greek) Catholic Eparchy of Olsztyn–Gdańsk is a suffragan eparchy in the ecclesiastical province of the metropolis of Przemyśl-Warsaw, which covers some part of Poland for the Ukrainian Greek Catholic Church parallel to the Latin hierarchy. It depends from the Roman Congregation for the Oriental Churches.
