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Changes in Ecclesiastical Circumscriptions

in Ireland

Ireland
DateAscendingChange
400Diocese of Emly was established
400Abbacy nullius of Trim was established
439Abbacy nullius of Dunshaughlin was established
440Abbacy nullius of Ardmore was established
440Abbacy nullius of Killala was established
445Archdiocese of Armagh was established
450Abbacy nullius of Ardagh was established
450Abbacy nullius of Duleek was established
450Abbacy nullius of Elphin was established
450Abbacy nullius of Killashee was established
454Abbacy nullius of Clogher was established
490Abbacy nullius of Kildare was established
500Abbacy nullius of Ardcarne was established
500Abbacy nullius of Ardfert was established
500Abbacy nullius of Brefinnia was established
500Abbacy nullius of Cill Fhionnúrach was established
500Abbacy nullius of Connor was established
500Abbacy nullius of Inniscathy was established
500Abbacy nullius of Louth was established
500Abbacy nullius of Sléibhte was established
510Abbacy nullius of Sléibhte was suppressed (to Abbacy nullius of Kildare)
510Abbacy nullius of Tuam was established
520Abbacy nullius of Clonard was established
530Abbacy nullius of Seir Kieran was established
540Abbacy nullius of Clonmacnois was established
550Abbacy nullius of Achonry was established
550Abbacy nullius of Aghadoe was established
550Abbacy nullius of Clonfert was established
550Abbacy nullius of Derry was established
554Abbacy nullius of Ceanannus Mór was established
570Abbacy nullius of Ross was established
580Abbacy nullius of Cloyne was established
598Abbacy nullius of Ferns was established
600Abbacy nullius of Annaghdown was established
600Abbacy nullius of Cong was established
600Abbacy nullius of Cork was established
600Abbacy nullius of Glenndálocha was established
600Abbacy nullius of Roscrea was established
620Abbacy nullius of Kilmacduagh was established
625Abbacy nullius of Leighlin was established
630Abbacy nullius of Lismore was established
640Abbacy nullius of Killaloe was established
650Abbacy nullius of Mayo was established
700Abbacy nullius of Raphoe was established
900Diocese of Cashel was established (from Diocese of Emly)
900Diocese of Emly was promoted as Metropolitan Archdiocese of Emly (lost territory to establish Diocese of Cashel)
1000Diocese of Limerick was established
1038Diocese of Dublin was established (from Abbacy nullius of Glenndálocha)
1052Abbacy nullius of Seir Kieran was renamed as Abbacy nullius of Aghaboe
1052Abbacy nullius of Louth was suppressed (to Abbacy nullius of Clogher)
1096.12.27Diocese of Waterford was established (from Abbacy nullius of Lismore)
1111Abbacy nullius of Aghaboe was promoted as Diocese of Aghaboe
1111Abbacy nullius of Aghadoe was suppressed (to Diocese of Raigh Maighe Beiscirt)
1111Abbacy nullius of Ardcarne was suppressed (to Diocese of Elphin)
1111Diocese of Cashel was promoted as Metropolitan Archdiocese of Cashel
1111Abbacy nullius of Clogher was promoted as Diocese of Clogher
1111Abbacy nullius of Clonard was promoted as Diocese of Clonard (gained territory from the suppressed Abbacy nullius of Dunshaughlin)
1111Abbacy nullius of Clonfert was promoted as Diocese of Clonfert
1111Abbacy nullius of Cloyne was promoted as Diocese of Cloyne
1111Abbacy nullius of Cong was promoted as Diocese of Cong
1111Abbacy nullius of Connor was promoted as Diocese of Connor
1111Abbacy nullius of Duleek was promoted as Diocese of Duleek
1111Abbacy nullius of Dunshaughlin was suppressed (to Diocese of Clonard)
1111Abbacy nullius of Elphin was promoted as Diocese of Elphin (gained territory from the suppressed Abbacy nullius of Ardcarne)
1111Metropolitan Archdiocese of Emly was demoted as Diocese of Emly
1111Abbacy nullius of Ferns was promoted as Diocese of Ferns
1111Abbacy nullius of Glenndálocha was promoted as Diocese of Glendalough
1111Abbacy nullius of Kildare was promoted as Diocese of Kildare
1111Abbacy nullius of Killala was promoted as Diocese of Killala
1111Abbacy nullius of Killaloe was promoted as Diocese of Killaloe
1111Abbacy nullius of Leighlin was promoted as Diocese of Leighlin
1111Abbacy nullius of Lismore was promoted as Diocese of Lismore
1111Abbacy nullius of Ardfert was promoted as Diocese of Raigh Maighe Beiscirt (gained territory from the suppressed Abbacy nullius of Aghadoe)
1111Abbacy nullius of Raphoe was promoted as Diocese of Raphoe
1111Abbacy nullius of Tuam was promoted as Diocese of Tuam
1111Archdiocese of Armagh was promoted as Metropolitan Archdiocese of Armagh
1117Diocese of Raigh Maighe Beiscirt was renamed as Diocese of Ardfert and Aghadoe
1118Diocese of Elphin was renamed as Diocese of Roscommon
1120Diocese of Aghaboe was renamed as Diocese of Ossory
1152Abbacy nullius of Achonry was promoted as Diocese of Achonry
1152Abbacy nullius of Annaghdown was promoted as Diocese of Annaghdown
1152Abbacy nullius of Ardagh was promoted as Diocese of Ardagh
1152Diocese of Ardfert and Aghadoe lost territory to Diocese of Inniscathy
1152Abbacy nullius of Ardmore was promoted as Diocese of Ardmore
1152Abbacy nullius of Brefinnia was promoted as Diocese of Brefinnia
1152Abbacy nullius of Ceanannus Mór was promoted as Diocese of Ceanannus Mór
1152Abbacy nullius of Cill Fhionnúrach was promoted as Diocese of Cill Fhionnúrach
1152Abbacy nullius of Clonmacnois was promoted as Diocese of Clonmacnois
1152Diocese of Cong was suppressed (to Metropolitan Archdiocese of Tuam)
1152Abbacy nullius of Cork was promoted as Diocese of Cork
1152Diocese of Dublin was promoted as Metropolitan Archdiocese of Dublin (gained territory from Diocese of Glendalough)
1152Diocese of Glendalough lost territory to Metropolitan Archdiocese of Dublin
1152Abbacy nullius of Inniscathy was promoted as Diocese of Inniscathy (gained territory from Diocese of Ardfert and Aghadoe)
1152Abbacy nullius of Killashee was suppressed (to Diocese of Kildare)
1152Abbacy nullius of Kilmacduagh was promoted as Diocese of Kilmacduagh
1152Abbacy nullius of Mayo was promoted as Diocese of Mayo
1152Abbacy nullius of Roscrea was promoted as Diocese of Roscrea
1152Abbacy nullius of Ross was promoted as Diocese of Ross
1152Abbacy nullius of Trim was suppressed (to Diocese of Clonard)
1152Diocese of Tuam was promoted as Metropolitan Archdiocese of Tuam (gained territory from the suppressed Diocese of Cong)
1152Abbacy nullius of Derry was promoted as Diocese of Cinél nEógain and Ardstraw (gained territory from the suppressed Diocese of Ardstraw)
1156Diocese of Roscommon was renamed as Diocese of Elphin
1160Diocese of Duleek was suppressed (to Diocese of Clonard)
1160Diocese of Roscrea was suppressed (to Diocese of Killaloe)
1173.02.11Diocese of Cinél nEógain and Ardstraw was renamed as Diocese of Maghera, Cenél Fearadhaigh and Ardstraw
1174Diocese of Clonard was renamed as Diocese of Clonard
1179Diocese of Glendalough lost territory to Metropolitan Archdiocese of Dublin
1188Diocese of Inniscathy was suppressed (to Diocese of Ardfert and Aghadoe, Diocese of Killaloe and Diocese of Limerick)
1202Diocese of Clonard was suppressed (to establish Diocese of Meath)
1202Diocese of Meath was established (from the suppressed Diocese of Clonard)
1210Diocese of Mayo was suppressed (to Metropolitan Archdiocese of Tuam)
1211Diocese of Ardmore was suppressed (to Diocese of Lismore)
1211Diocese of Ceanannus Mór was suppressed (to Diocese of Meath)
1215.02.25Diocese of Glendalough was suppressed (to Metropolitan Archdiocese of Dublin)
1253.08Diocese of Annaghdown was suppressed (to Metropolitan Archdiocese of Tuam)
1254Diocese of Maghera, Cenél Fearadhaigh and Ardstraw was renamed as Diocese of Derry
1306Diocese of Annaghdown was restored (from Metropolitan Archdiocese of Tuam)
1363.06.16Diocese of Lismore was suppressed (to Diocese of Waterford and Lismore)
1363.06.16Diocese of Waterford was renamed as Diocese of Waterford and Lismore (gained territory from the suppressed Diocese of Lismore)
1428Diocese of Mayo was restored (from Metropolitan Archdiocese of Tuam)
1429Diocese of Cloyne was suppressed (to Diocese of Cork and Cloyne)
1429Diocese of Cork was renamed as Diocese of Cork and Cloyne (gained territory from the suppressed Diocese of Cloyne)
1439.07.29Diocese of Connor was suppressed (to Diocese of Down)
1460Diocese of Brefinnia was renamed as Diocese of Kilmore
1484.08.28Collegiate nullius of Saint Nicholas was established (from Diocese of Annaghdown)
1580.10.17Diocese of Annaghdown was suppressed (to Metropolitan Archdiocese of Tuam)
1631Diocese of Mayo was suppressed (to Metropolitan Archdiocese of Tuam)
1694.11.29Diocese of Kildare was renamed as Diocese of Kildare and Leighlin (gained territory from the suppressed Diocese of Leighlin)
1694.11.29Diocese of Leighlin was suppressed (to Diocese of Kildare and Leighlin)
1718.05.10Diocese of Emly was united (as title of Metropolitan Archdiocese of Cashel)
1747.12.10Diocese of Cloyne and Ross was restored (from Diocese of Cork and Cloyne, and from the suppressed Diocese of Ross)
1747.12.10Diocese of Cork and Cloyne was renamed as Diocese of Cork (lost territory to establish Diocese of Cloyne and Ross)
1747.12.10Diocese of Ross was suppressed (to establish Diocese of Cloyne and Ross)
1756.08.11Diocese of Clonmacnois was suppressed (to Diocese of Ardagh)
1756.08.12Diocese of Clonmacnois was united (as title of Diocese of Ardagh)
1831.04.26Collegiate nullius of Saint Nicholas was promoted as Diocese of Galway (gained territory from Metropolitan Archdiocese of Tuam)
1831.04.26Metropolitan Archdiocese of Tuam lost territory to Diocese of Galway
1850.11.24Diocese of Cloyne and Ross was renamed as Diocese of Cloyne (lost territory to establish Diocese of Ross)
1850.11.24Diocese of Ross was restored (from Diocese of Cloyne and Ross)
1883.06.05Diocese of Cill Fhionnúrach was united (as title of Diocese of Galway and Kilmacduagh)
1883.06.05Diocese of Galway was renamed as Diocese of Galway and Kilmacduagh (gained territory from the suppressed Diocese of Kilmacduagh, and gained title of Cill Fhionnúrach)
1883.06.05Diocese of Kilmacduagh was suppressed (to Diocese of Galway and Kilmacduagh)
1952.12.20Diocese of Ardfert and Aghadoe was renamed as Diocese of Kerry
1958.04.19Diocese of Cork was renamed as Diocese of Cork and Ross (gained territory from the suppressed Diocese of Ross)
1958.04.19Diocese of Ross was suppressed (to Diocese of Cork and Ross)
1969Titular Episcopal See of Ardcarne was restored
1969Titular Episcopal See of Ardmore was restored
1969Titular Episcopal See of Ath Truim was restored
1969Titular Episcopal See of Ceanannus Mór was restored
1969Titular Episcopal See of Cell Ausaille was restored
1969Titular Episcopal See of Cluain Iraird was restored
1969Titular Episcopal See of Cunga Féichin was restored
1969Titular Episcopal See of Domnach Sechlainn was restored
1969Titular Episcopal See of Duleek was restored
1969Titular Episcopal See of Eanach Dúin was restored
1969Titular Episcopal See of Glenndálocha was restored
1969Titular Episcopal See of Inis Cathaig was restored
1969Titular Episcopal See of Louth was restored
1969Titular Episcopal See of Mayo was restored
1969Titular Episcopal See of Roscrea was restored
1969Titular Episcopal See of Slebte was restored
1970Titular Episcopal See of Domnach Sechlainn was renamed as Titular Episcopal See of Domnach Sechnaill
2015.01.26Metropolitan Archdiocese of Cashel was renamed as Metropolitan Archdiocese of Cashel and Emly (gained territory from the suppressed Diocese of Emly)
2015.01.26Diocese of Emly was suppressed (to Metropolitan Archdiocese of Cashel and Emly)

as of 2020.06.30

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