Category

Roman Catholic dioceses established in the 12th century

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Roman Catholic Archdiocese of Santiago de Compostela

Catholic archdiocese in Spain

Roman Catholic Diocese of Włocławek

diocese of the Catholic Church in Poland

Roman Catholic Archdiocese of Monreale

Catholic archdiocese in Italy

Roman Catholic Diocese of Tournai

Catholic ecclesiastical territory in Belgium

Roman Catholic Diocese of Alessandria della Paglia

Diocese of the Catholic Church in Italy

Roman Catholic Diocese of Cefalù

diocese of the Catholic Church in Italy

Roman Catholic Diocese of Ischia

diocese of the Catholic Church in Italy

Roman Catholic Archdiocese of Catanzaro-Squillace

Catholic archdiocese in Italy

Roman Catholic Diocese of Grosseto

diocese of the Catholic Church in Italy

Roman Catholic Diocese of Osma-Soria

diocese of the Catholic Church in Spain

Roman Catholic Diocese of Patti

diocese of the Catholic Church in Italy

Prince-Bishopric of Cammin

historic Pomeranian Catholic diocese

Roman Catholic Diocese of Molfetta-Ruvo-Giovinazzo-Terlizzi

since 1986 diocese of the Catholic Church in Italy

Roman Catholic Diocese of Coria-Cáceres

diocese of the Catholic Church in Spain

Roman Catholic Diocese of Hvar-Brač-Vis

diocese of the Catholic Church

Roman Catholic Diocese of Vallo della Lucania

since 1945 diocese of the Catholic Church in Italy

Roman Catholic Diocese of Nuoro

diocese of the Catholic Church in Italy

Roman Catholic Diocese of Tempio-Ampurias

diocese of the Catholic Church in Italy

Roman Catholic Diocese of San Marco Argentano-Scalea

diocese of the Catholic Church in Italy

Roman Catholic Diocese of Segorbe-Castellón

diocese of the Catholic Church in Spain

Roman Catholic Diocese of Ciudad Rodrigo

diocese of the Catholic Church in Spain

Roman Catholic Diocese of Plasencia

diocese of the Catholic Church in Spain

Roman Catholic Diocese of Derry

diocese of the Catholic Church in Ireland

Roman Catholic Diocese of Cuenca

diocese of the Catholic Church in Spain

Roman Catholic Diocese of Killaloe

diocese of the Catholic Church in Ireland

Roman Catholic Diocese of Kerry

diocese of the Catholic Church in Ireland

Roman Catholic Diocese of Kilmore

diocese of the Catholic Church in Ireland

Roman Catholic Diocese of Raphoe

diocese of the Catholic Church in Ireland

Roman Catholic Diocese of Dromore

diocese of the Catholic Church in Northern Ireland

Roman Catholic Diocese of Killala

diocese of the Catholic Church in Ireland

Bishopric of Lebus

Roman Catholic diocese in Poland/Germany (1125-1598)

Roman Catholic Diocese of Brechin

pre-Reformation diocese of Scotland