Catholic-Hierarchy DC

The Year of Our Lord 301

and 4th Century

Diocese Events


See Also: Overview | Previous Year (300) | Next Year (303)

DateFromTo
4th CenturyDiocese of Agen, France Erected
4th CenturyDiocese of Alba (Pompea), Italy Erected
4th CenturyDiocese of Acqui, Italy Erected
4th CenturyDiocese of Ávila, Spain Erected
4th CenturyDiocese of Ascoli Piceno, Italy Erected
4th CenturyDiocese of Barcelona, Spain Erected
4th CenturyDiocese of Bari, Italy Erected
4th CenturyDiocese of Bayonne, France ((or 6th Century)) Erected
4th CenturyDiocese of Besançon, France ElevatedArchdiocese of Besançon, France Elevated
4th CenturyDiocese of Bergamo, Italy Erected
4th CenturyDiocese of Braga, Portugal Erected
4th CenturyDiocese of Brindisi, Italy Erected
4th CenturyDiocese of Cagliari, Italy Erected
4th CenturyDiocese of Squillace, Italy Erected
4th CenturyDiocese of Sarsina, Italy Erected
4th CenturyDiocese of Concordia (Sagittaria), Italy Erected
4th CenturyDiocese of Como, Italy Erected
4th CenturyDiocese of Cremona, Italy Erected
4th CenturyDiocese of Cagli, Italy Erected
4th CenturyDiocese of Digne, France Erected
4th CenturyDiocese of Évora, Portugal Erected
4th CenturyDiocese of Ferentino, Italy Erected
4th CenturyDiocese of Gerona, Spain Erected
4th CenturyDiocese of Piacenza, Italy Erected
4th CenturyDiocese of Grenoble, France Erected
4th CenturyDiocese of Imola, Italy Erected
4th CenturyDiocese of Genève {Geneva}, Switzerland Erected
4th CenturyDiocese of León, Spain Erected
4th CenturyDiocese of Lisboa, Portugal Erected
4th CenturyDiocese of Lodi, Italy Erected
4th CenturyDiocese of Lucera, Italy Erected
4th CenturyDiocese of Mainz, Germany Erected
4th CenturyDiocese of Milano, Italy ElevatedArchdiocese of Milano {Milan}, Italy Elevated
4th CenturyDiocese of Nantes, France Erected
4th CenturyDiocese of Novara, Italy Erected
4th CenturySuburbicarian See of Palestrina, Italy Erected
4th CenturyDiocese of Parma, Italy Erected
4th CenturyDiocese of Pisa, Italy Erected
4th CenturyDiocese of Porto, Portugal Erected
4th CenturyDiocese of Sevilla, Spain ElevatedArchdiocese of Sevilla {Seville}, Spain Elevated
4th CenturySuburbicarian See of Albano, Italy Erected
4th CenturyArchdiocese of Dardania, North Macedonia Erected
4th CenturyDiocese of Siena, Italy Erected
4th CenturyDiocese of Sion {Sitten}, Switzerland Erected
4th CenturyDiocese of Castellammare di Stabia, Italy Erected
4th CenturyDiocese of Speyer, Germany Erected
4th CenturyDiocese of Strasbourg, France Erected
4th CenturyDiocese of Narni, Italy Erected
4th CenturyDiocese of Civita (Tempio), Italy Erected
4th CenturyDiocese of Toledo, Spain ElevatedArchdiocese of Toledo, Spain Elevated
4th CenturyDiocese of Torino, Italy Erected
4th CenturyDiocese of Tortosa, Spain Erected
4th CenturyDiocese of Treviso, Italy Erected
4th CenturyDiocese of Troyes, France Erected
4th CenturyDiocese of Urgell, Spain Erected
4th CenturyDiocese of Valence, France Erected
4th CenturyDiocese of Acerenza, Italy Erected
4th CenturyEparchy of Alep (Melkite Greek), Syria Erected
4th CenturyDiocese of Avignon, France Erected
4th CenturyDiocese of Sirmio (Srijem; Sirmium), Croatia Erected
4th CenturyConfederation of Canons Regular of St. Augustine Founded
4th CenturyCardinal Titular Church of Albano Erected
4th CenturyCardinal Titular Church of Palestrina Erected
4th CenturyCardinal Titular Church of Santa Cecilia Established
4th CenturyDiocese of Antibes, France Erected
4th CenturyDiocese of Apt, France Erected
4th CenturyDiocese of Chalons-sur-Marne, France Erected
4th CenturyDiocese of Cimiez, France Erected
4th CenturyDiocese of (Saint-Lizier de) Couserans (or Conserans), France Erected
4th CenturyDiocese of Embrun, France Erected
4th CenturyDiocese of Fréjus, France Erected
4th CenturyDiocese of Lectoure, France Erected
4th CenturyDiocese of Nevers, France Erected
4th CenturyDiocese of Reims, France ElevatedArchdiocese of Reims, France Elevated
4th CenturyDiocese of Saint-Paul-Trois-Châteaux, France Erected
4th CenturyDiocese of Tarbes, France Erected
4th CenturyDiocese of Verdun, France Erected
4th CenturyDiocese of Vernay, France Erected
4th CenturyDiocese of Viviers (Aps), France Erected
4th CenturyDiocese of Aosta, Italy Erected
4th CenturyDiocese of London, England, Great Britain Erected
4th CenturyArchdiocese of Beirut {Bairut} (Melkite Greek), Lebanon Erected
4th CenturyDiocese of Amiterno, Italy Erected
4th CenturyDiocese of Atella, Italy Erected
4th CenturyDiocese of Eca, Italy Erected
4th CenturyDiocese of Helvetii / Aventicum [Avenches] / Vindonissa [Windisch], Switzerland Erected
4th CenturyDiocese of Ancyra (Phrygia), Turkey Erected
4th CenturyApostolic Chancery, Roman Curia Established

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