List of Irish clans

Uí Fiachrach Dynasty

• Clan name : Uí Fiachrach
• Progenitor: Fiachrae m. Eochaid Mugmedon m. Muiredach Tirech m. Fíacha Sroiptine m. Cairbre Lifechair m. Cormac mac Airt m. Art mac Cuinn m. Conn of the Hundred Battles m. Fedlimid Rechtmar m. Túathal Techtmar m. Fíachu Finnolach m. Feradach Finnfechtnach m. Crimthann Nia Náir m. Lugaid Riab nDerg m. The Findemna, et cetera
• Septs : Uí Cleirigh, Ó hEidhin, Ó Dubhda, Uí Flaithbheartaigh, Uí Raghallaigh, Uí Ruairc, Uí Sheachnasaigh
• Location Kingdom of Connacht

  Clann Néill (also Clan Neill)

• Clan name : Clann Néill
• Progenitor: Niall Caille
• Hereditary Chief or Clan chief: Ó Néill Mór
• Septs : Mac Lochlainn, Mac Bearáin, Mac Seáin, Mac Suibhne, Ó Doibhlín, Mac Giolla Easbaig, Mac Íomhair, Mac Ladhmainn, Mac Conmidhe, Mac Néill, Mac Eoghain, The O'Higgins family
• Location - county, barony or townland: County Tyrone
• Cinéal : Cenél nEógain
• Branches: Uí Néill Ruadh, Clann Áodh Búidhe.

  Clann Domhnaill

• Clan name : Clann Domhnaill
• Progenitor: Domnaill m. Muircherdaich m. Muiredaich m. Éogain m. Néill Noígiallaig
• Hereditary Chief or Clan chief: Ó Donngaile Mór, Chief of Ballydonnelly, Hereditary Marshal of Ulster
• Septs : Ó Flaithbertaigh|Ua laithbheartaigh
• Location - county, barony or townland: Ballydonnelly, County Tyrone
• Cinéal : Cenél nEógain
• Branches:

  Muintír-Birn

• Clan name : Muintír-Birn
• Progenitor: Birnn m. Ruadrach m. Murchada m. Máel Dúin m. Áeda Alláin
• Hereditary Chief or Clan chief: Mac Ruaidhrí
• Septs : Mac Murchadha
• Location - county, barony or townland: Strabane
• Cinéal : Cenél nEógain
• Branches: Tellach Ainbhith

  Cenél Fergusa

• Clan name : Cenél Fergusa
• Progenitor: Fergusa m. Éogain m. Néill Noígiallaig
• Hereditary Chief or Clan chief: Ua hÓgáin
• Septs : O'Quinns, Ua Mael Fhabaill and O'Mallons
• Location - county, barony or townland: Dungannon
• Cinéal : Cenél nEógain

  Cairrge Brachaidhe

• Clan name : Cairrge Brachaidhe
• Progenitor: Brachaidi Mac Diarmada
• Hereditary Chief or Clan chief: Ua Maol Fhábhaill
• Septs : Carrichbrack in the barony of Inishowen West, County Donegal.
• Cinéal : Cenél nEógain

  Cenél mBinnigh

• Clan name : Cenél mBinnigh
• Progenitor: Eochach Binnich m. Éogain m. Néill Noígiallaig
• Hereditary Chief or Clan chief: Ua hAghmaill, Teallach Duibhbrailbe
• Septs : Ua Brolaigh, herenaghs of Tech na Coimairce and Clonleigh
• Location - county, barony or townland: Glenconkeine, barony of Loughinsholin
• Cinéal : Cenél nEógain
• Branches: *Cenél mBinnig Glinne *Cenél mBindigh Locha Droichid *Cenél mBindigh Tuaithe Rois and one branch of the Ua Brolaigh

  Cenél Moen

• Clan name : Cenél Moen
• Progenitor: Maein m. Muireadaigh m. Éogain m. Néill Noígiallaig
• Hereditary Chief or Clan chief: Ó Gairmleadhaigh
• Septs : O Duineachaidh, Ó Croidheáin, Ó Lúinigh, O'Tierney, O'Kelly, O'Cernaghan, O'Garvey, MacDonaghy, Ó Peatáin and Ó Luinigh
• Location - county, barony or townland: Magh Itha in the barony of Raphoe, County Donegal
• Cinéal : Cenél nEógain

  Cenél Fearadhaigh

• Clan name : Cenél Fearadhaigh
• Progenitor: Feradaich m. Éogain m. Néill Noígiallaig
• Hereditary Chief or Clan chief: Mac Cathmhaoil
• Septs: McCaul, Mac an tSaoir, McGilbride, O'Bradley, McDonald, McAlister, McSorley,, McGilchrist, McAleese, McFarland, McGivern, McConnell, McDaniel, McDonnell, McIver O'Mulpatrick
• Location - county, barony or townland: Clogher, County Tyrone
• Cinéal : Cenél nEógain
• Branches: Mac Fiachra sept

  Cenél Tigernaich

• Clan name : Cenél Tigernaich
• Progenitor: Tighearnach m. Muireadaigh m. Éogain m. Néill Noígiallaig
• Hereditary Chief or Clan chief: Ó Maolfothartaigh, and Ó hEodhasa
• Location - county, barony or townland: County Tyrone
• Cinéal : Cenél nEógain

  Clan Conchobhair

• Clan name : Clan Conchobhair
• Progenitor: Conchobhar m. Fearghaile m. Maol Dúin m. Maol Fithrich m. Aodha Uairidnaigh
• Hereditary Chief or Clan chief: Ó Cathain
• Septs : O'Maoláin, Mac Bloscaidh
• Location - county, barony or townland: lords of Creeve and Keenaght
• Cinéal : Cenél nEógain
• Branches: Clan Drugain

  Clan Drugain

• Clan name : Clan Drugain
• Progenitor:
• Hereditary Chief or Clan chief: Ó Cathain
• Septs : O'Maoláin, Mac Bloscaidh, Mac Auslain, Mac Aibhne, Mac Einrí, Ó Maoilmheana, Ó Maoilmhíchíl, Ó Muireadhaigh, Ó Cuaig, Ó Cuinn, Ó Tanaidhe, Mac Bháltair.
• Location - county, barony or townland: lords of Creeve and Keenaght
• Cinéal : Cenél nEógain

  Clan Diarmatta (also Clandermot)

• Clan name : Clan Diarmatta
• Progenitor: Cearallán m. Baoighill m. Diarmada m. Conchobhair m. Fearghaile m. Maol Dúin m. Maol Fithrich m. Aodha Uaridnaich
• Hereditary Chief or Clan chief: Ó Cairealláin,
• Septs : Mac Ettigan
• Location - county, barony or townland: The parish of Clondermot in County Londonderry
• Cinéal : Cenél nEógain
• Branches: Tealach Braonáin

  Cenél Aonghusa

• Clan name : Cenél Aonghusa
• Progenitor: According to the O Clery Book of Genealogies, M. 790, lines 714 to 718, Eógan mac Niall's sons first conquered and held territory in the Bredach in Inishowen. They are enumerated in the following manner:

• Location - county, barony or townland: County Tyrone
• Cinéal : Cenél nEógain

  Cenél Mic Earca

• Clan name : Cenél Mic Earca
• Progenitor: Máel Fithrich m. Áeda Uaridnaich m. Domnaill m. Muircherdaich mac Earca m. Muiredaich m. Éogain
• Location - county, barony or townland: Barony of Clogher, County Tyrone
• Cinéal : Cenél nEógain

  Cenél Luighdech (also Sil Lugdach)

• Clan name : Cenél Luighdech
• Progenitor: Lugdach m. Sétnai mic Fergus m. Conaill Gulban m. Néill Noígiallaig
• Hereditary Chief or Clan chief: Ó Domhnaill
• Septs : Uí Baoighill and the Uí Dochartaigh Ua Cairbre, Ó Duibhne, Ó Daighre, Mac Dailredochar, Ó Dunáin, Ó Dubhthach, Ó Glacáin, Mac Reannacháin, Ó hEarghaile, Ó hEigneacháin, Ó hOireachtaigh, Mac Meanman, Mac Maongail, Ó Coigligh, Mac Robhartaigh, Ó Robharcháin, Ó Scannail, Ó Toráin, Mac Muircheartaigh, Mac Giolla Comhghaill, Ó Cromlaoich.
• Location - county, barony or townland: Northern County Donegal
• Cinéal : Cenél Conaill
• Branches: Clann Dálaigh, Clann Chindfaoladh, Arda Midhair

  Arda Midhair

• Clan name : Arda Midhair
• Progenitor: Lugdach m. Sétnai mic Fergus m. Conaill Gulban m. Néill Noígiallaig
• Hereditary Chief or Clan chief: Ó Dochartaigh
• Septs : Mac Giolla Brighdhe, Mac Eachmharcaigh, Mac Daibhí.
• Location - county, barony or townland: Inishowen, Co. Donegal
• Cinéal : Cenél Conaill

  Cenél mBógaine

• Clan name : Cenél mBógaine
• Progenitor: Énnae Bóguine m. Conaill Gulban m. Néill Noígiallaig
• Location - county, barony or townland: Tír Boghaine.
• Cinéal : Cenél Conaill

  Cenél Aedha

• Clan name : Cenél Aedha
• Progenitor: Aedha m. Ainmirech m. Setna m. Ferghusa cennfhoda m. Conaill Gulban m. Néill Noígiallaig
• Hereditary Chief or Clan chief: Ó Maeldoraidh, Ó Canannáin
• Septs : Ó Gallchobhair
• Location - county, barony or townland: Barony of Tirhugh, alias Tír Aedha, in county Donegal
• Cinéal : Cenél Conaill

  Cenél Duach

• Clan name : Cenél Duach
• Progenitor: Tigernach Duí, son of Conall Gulban.
• Hereditary Chief or Clan chief:
• Septs :
• Location - county, barony or townland:
• Cinéal : Cenél Conaill

  Clann Chindfaoladh

• Clan name : Clann Chindfaoladh
• Progenitor: Baighill m Bradagain m Muirchertaigh m Cindfhaeladh
• Hereditary Chief or Clan chief: Ua Bhaeighill
• Location - county, barony or townland: Tir Ainmireach, Three Tuatha and barony of Boylagh in County Donegal.
• Cinéal : Cenél Conaill

  Muintir Dalachain

• Clan name : Muintir Dalachain
• Progenitor: Baoighill m Bradagáin m Muirchertaigh m Cindfhaeladh
• Hereditary Chief or Clan chief: Ó Cearnacháin and Ó Dalachain
• Location - county, barony or townland: Tuath Bladhach anglicized Tuath Doe, south of Ros-Iorguil County Donegal
• Cinéal : Cenél Conaill

  Cenél Eanna

• Clan name : Cenél Eanna
• Progenitor: Eanna, the sixth son of Conall Gulban
• Septs : Hanna, Hainey, Haney, Heaney
• Location - county, barony or townland: Kings of Magh Ith, Tir Eanna and Fanad in present-day County Donegal.
• Cinéal : Cenél Conaill

  Cenél Endai

• Clan name : Cenél Endai
• Progenitor: Enda, the youngest son of Niall of the Nine Hostages
• Hereditary Chief or Clan chief: ua Lapáin and Aa h-Eicnechan
• Septs : Ua Bresleáin
• Location - county, barony or townland: the river Errity to Barnesmore, barony of Tir Hugh, to Sruell in the barony of Banagh, County Donegal. Parish of Aughnis, barony of Kilmacrenan.
• Cinéal : Uíbh Néill a' Tuaisceart
• Branches: O'Breslin, chiefs in Fanad

  Cenél Cairpri Mor

• Clan name : Cenél Cairpri
• Progenitor: Cairbre, son of Niall of the Nine Hostages
• Hereditary Chief or Clan chief: Ó Maolchloiche, a name which was later mistranslated to Stone
• Septs : Ua Bresleáin
• Location - county, barony or townland: "Críoch Cairpre Droma Cliab" of northern County Sligo and northeast County Leitrim. Barony of Carbury in North Sligo.
• Cinéal : Uíbh Néill a' Tuaisceart
• Branches: O'Breslin, chiefs in Fanad, Uí Cairpri Laigen, Cairpre Gabra

  Síl Aedha Eaniagh

• Clan name : Síl Aedha Eaniagh
• Progenitor: Cairbre, son of Niall of the Nine Hostages
• Hereditary Chief or Clan chief: O'Murchada, O'Murphy
• Septs : O'Mellon
• Location - county, barony or townland: Barony of Strabane, County Tyrone.
• Cinéal : Uíbh Néill a' Tuaisceart

  Conmaicne

Conmaicne Cuile Toladh

• Clan name : Conmaicne Cuile Toladh
• Progenitor: Findchóem m. Cúmscrach
• Hereditary Chief or Clan chief: Ó Talcharain
• Septs : Ó Calarain, Ó Morann, Ó Martain
• Location - county, barony or townland: Kilmaine barony, County Mayo.
• Cinéal : Conmaicne
• Branches: Síl Cárida, Cenél Enda

  Conmaicne Mara

• Clan name : Conmaicne Mara
• Progenitor: Conmaic m. Oirbsen Máir...ultimately Fergus mac Roich
• Hereditary Chief or Clan chief: Úa Cadhla
• Septs : Mac Conghaile, Ó Clochartaigh,Ó Dubháin, Mac Fualáin\Ó Cualáin.
• Location - county, barony or townland: Connemara in western Co. Galway.
• Cinéal : Conmaicne

  Conmaicne Críchi Meic Eircce

• Clan name : Conmaicne Críchi Meic Eircce
• Progenitor: Fraech, son of Cumscrach
• Hereditary Chief or Clan chief:
• Location - county, barony or townland: Kilconickny, Co. Galway
• Cinéal : Conmaicne
• Branches: Cenél Lughna, Cenél cCais and Cenél Dubháin

  Conmaicne Mide la Cuirccne

• Clan name : Conmaicne Mide la Cuirccne
• Progenitor: Copchass, in descent from Conmac, son of Orbsen mor.
• Hereditary Chief or Clan chief:
• Location - county, barony or townland: Quirene, a former name of the barony of Kilkenny West, Co. Westmeath.
• Cinéal : Conmaicne

  Conmaicne Bec

• Clan name : Conmaicne Bec
• Progenitor: Conmaic m. Oirbsen Máir...ultimately Fergus mac Roich
• Hereditary Chief or Clan chief: Ua Tolairg
• Location - county, barony or townland: Quirene, Co. Westmeath
• Cinéal : Conmaicne

  Muintir Eolais

• Clan name : Muintir Eolais
• Progenitor: Finer, son of Cúmscrach
• Hereditary Chief or Clan chief: Mac Raghnaill, Mac Rannall
• Septs : Ó Mughroin, Mac Searraigh
• Location - county, barony or townland: Leitrim baronies of Mohill and Leitrim
• Cinéal : Conmaicne of Magh Réin
• Branches: Tellach Brocáin, Tellach Cendetigh, Tellach Maelmartain, Tellach maelmuiri, Tellach n-Odrainn,

  Tellach Cearbhallan

• Clan name : Tellach Cearbhallan
• Progenitor: Finer, son of Cúmscrach
• Hereditary Chief or Clan chief: Maoil Mhiadhaigh
• Septs : Ó Beigléighinn, Ó Bardain, Ó hEolusa, Ó Muiredaigh, Ó Cuirnin, ollamh, Ó Maolghuala, Mac Mioluic.
• Location - county, barony or townland: Leitrim baronies of Mohill and Leitrim
• Cinéal : Muinter Eolais, Conmaicne of Magh Réin

  Cenel Luachain

• Clan name : Cenel Luachain
• Progenitor: Luachan, son of Onchu, and 4th in descent from Cumscrach
• Hereditary Chief or Clan chief: Mag Dorchaidh or Mac Dorchaidhe
• Septs : Ó Dunain, Ó Ciardubhain
• Location - county, barony or townland: Oughteragh parish, barony of Carrigallen, southern co. Leitrim
• Cinéal : Conmaicne of Magh Réin
• Branches: Ui Bathbairr, Ui Braici, Ui Buibhin, Ui Chailti, Ui Cianacáin, Ui Conbhuidhe, Ui Damaigh of Cenél Luachain, Ui Dimusaigh, Ui Dubháin, Ui Erailb, Ui Eturrain, Ui Gabhadáin, Ui Maelpátraig, Ui Maelsuthain, Ui Muinecháin, Ui Tredmain, Tellach Tanaide, Tellach Cléirigh.

  Clann Calbrainn

• Clan name : Clann Calbrainn
• Location - county, barony or townland: Co. Leitrim
• Cinéal : Conmaicne of Magh Réin
• Branches: Clann Martain, Clann Maelduilighe, Clann Bradain, Clann Arcain and Tellach Uanan

  Clann Faelgusa

• Clan name : Clann Faelgusa
• Location - county, barony or townland: Co. Leitrim
• Cinéal : Conmaicne of Magh Réin
• Branches: Clann Corrdercain, Clann Gemáin, Clann Cathusaigh, Clann Dinnachain, Clann Birn, Clann Anairc, Ui Conbhuidhe, Ui Gellustain, Ui Riaglachain.

  Clann Finoicci, or Sil Findellaig

• Clan name : Clann Finoicci, or Sil Findellaig
• Progenitor: Descendants of Finoicc, 2nd wife of Findellach, son of Neidhe, and 5th fr. Cumscrach
• Location - county, barony or townland: Co. Leitrim
• Cinéal : Conmaicne of Magh Réin
• Branches: Clann Telline, Clann Cronan, Clann Ainnsin, Clann Chirdubhain, Clann Finn, Clann Ciaracan, Clann Ibill

  Cenél Cromáin

• Clan name : Cenél Cromáin
• Location - county, barony or townland: Co. Leitrim
• Cinéal : Conmaicne of Magh Réin

  Clann Faelchon

• Clan name : Clann Faelchon
• Location - county, barony or townland: Co. Leitrim
• Cinéal : Conmaicne of Magh Réin

  Tellach Finnachan

• Clan name : Tellach Finnachan
• Location - county, barony or townland: Co. Leitrim
• Cinéal : Conmaicne of Magh Réin

  Síl Maelefithrig

• Clan name : Síl Maelefithrig
• Location - county, barony or townland: Co. Leitrim
• Cinéal : Conmaicne of Magh Réin
• Branches: Clann Clothachtaigh and Clann Oirechtaigh

  Clann Fermaighe

• Clan name : Clann Fermaighe
• Progenitor: Findellach, the son of Neidhe, and 5th in descent from Cumscrach
• Hereditary Chief or Clan chief: Mac Cogadhain or Mac Acadhain
• Location - county, barony or townland: Glenfarne in the parish of Cloonclare in the baronies of Dromahaire and Rosclogher, Co. Leitrim.
• Cinéal : Conmaicne of Magh Réin
• Branches: Clann Cellachain, Clann Maelsamhna, Clann Taebhachain, Clann Ubhan, Clann Lughann, and Clann Uanan

  Muintir Geradháin

• Clan name : Muintir Geradháin
• Hereditary Chief or Clan chief: Mag Fhionnbhairr
• Location - county, barony or townland: Lough Gowna in Co. Longford
• Cinéal : Conmaicne of Magh Réin
• Branches: Tellach Finnoigi, Tellach Gabhadháin.

  Muintír Giollagáin

• Clan name : Muintír Giollagáin
• Progenitor: Race of Rudhraigh, that is, of the same stock as Mag Raghnaill of Muinter Eolais
• Hereditary Chief or Clan chief: O Cuinn
• Location - county, barony or townland: Teathbha, baronies of Moydow and Shrule Co. Westmeath
• Cinéal : Conmaicne of Magh Réin
• Branches: Tellach Connucan, Tellach Gormghaili, Tellach Maoilchíaráin

  McGoldrick

• Clan name : Muintír Giollagáin
• Progenitor: Race of Rudhraigh, that is, of the same stock as Mag Raghnaill of Muinter Eolais
• Hereditary Chief or Clan chief: Dave
• Location - county, barony or townland: Up Meath Up Naven
• Cinéal : Conmaicne of Navan
• Branches: Rob

  Muintir Anghaile

• Clan name : Muintir Anghaile
• Hereditary Chief or Clan chief: Ua Fearghaile
• Septs : Mac Gofraidh, Mac Concaille, Mac Conmhaic, Mac Tadghan, Mac Cú Shléibhe, Mac Murchadha, Mac Seáin, Ó Súilleabháin, Ó Tormaigh.
• Location - county, barony or townland: Annually in county Longford
• Cinéal : Conmaicne of Magh Réin
• Branches: Tellach Congaláin, Tellach Floinn

  Síol Faolcháin

• Clan name : Síol Faolcháin
• Progenitor: Éogan Cáech, son of Nath Í, and great-grandson of Éana Cionnsealach
• Hereditary Chief or Clan chief: Mac Murchadha sept, Kavanagh. Current Chief is William Butler Kavanagh
• Septs : Ua Finnthighearn, Mac Bhadach, Mac Dáibhí Mór, Ó Dúnlaing
• Location - county, barony or townland: South Wicklow & north-east Wexford
• Cinéal : Uí Chionnsealaigh
• Branches: Gahan's of Síol Ealaigh

  Siol aElaigh

• Clan name : Siol aElaigh
• Hereditary Chief or Clan chief: Ó Gaotháin
• Septs : Ó Niall, Ó Dúnlaing
• Location - county, barony or townland: South Wicklow & north-east Wexford
• Cinéal : Síol Faolcháin, Uí Chionnsealaigh

  Uí Felmeda Thes

• Clan name : Uí Felmeda Thes
• Hereditary Chief or Clan chief: Úa Murchadha or MacMurchadha chiefs of Crioch O'Felme or Hy-Feidhlme
• Septs : Ó Gairbhain
• Location - county, barony or townland: Offelimy, now the barony of Ballaghkeen, in County Wexford. Oulartleigh Castle
• Cinéal : Uí Ceinnselaig

  Uí Felmeda Tuaidh

• Clan name : Uí Felmeda Tuaidh
• Progenitor: Oilioll mac Muiredaig, alias Ui Onchon
• Hereditary Chief or Clan chief: O'Garvey
• Location - county, barony or townland: Tulach Ua Felmedha, a.k.a. Tullowphelim, became the namesake for the parish of Tullow. Rathvilly, Co. Carlow
• Cinéal : Uí Ceinnselaig

  Sil Chormaic (Clann Cormaic)

• Clan name : Sil Chormaic
• Progenitor: Cormaicc m. Nath Í m. Crimthaind m. Énnai Ceinselaig
• Hereditary Chief or Clan chief:
• Location - county, barony or townland: River Slaney basin in County Wexford, the MacMurrough royal demesne around Ferns, as well as the barony of Scarawalsh
• Cinéal : Uí Ceinnselaig
• Branches: Cuthraighe, Ua Trena, Ui Cruinn or Ui Cuinn, Ua Gabla Fine and Ua Gabla Roireann

  Sil Máeluidir

• Clan name : Sil Máeluidir
• Hereditary Chief or Clan chief: Ua hArtghaile
• Septs : Ó Foirtcheirn, Ó Laidhgnen,, Ó Cuilen
• Location - county, barony or townland: The Baronies of Shelmalier in county Wexford
• Cinéal : Uí Ceinnselaig
• Branches: Ui Deagha, Ferann na Cenél

  Uí Fergusa

• Clan name : Uí Fergusa
• Location - county, barony or townland:
• Cinéal : Uí Ceinnselaig

  Clann Guaire

• Clan name : Clann Guaire
• Cinéal : Uí Ceinnselaig

  Clann Fiachu meic Ailella

• Clan name : Clann Fiachu meic Ailella
• Cinéal : Uí Ceinnselaig

  Uí Muiredaig

• Clan name : Uí Muiredaig
• Progenitor: Descend from Ughaire, a King of Leinster, Muiredaig m. Murchada m. Bráen
• Hereditary Chief or Clan chief: Ua Tuathail
• Septs : Ua Lorcáin
• Location - county, barony or townland: The baronies of Kilkea and Moone, Narragh and Reban East and West, and parts of Connell, in co. Kildare, plus the plus west half of Uí Mail, in co. Wicklow.
• Cinéal : Uí Dúnlainge

  Uí Dúnchada

• Clan name : Uí Dúnchada
• Progenitor: Gillai Mo Cholmóc m. Cellaich m. Dúnchada m. Lorccáin m. Fáeláin m. Muiredaig m. Bróen m. Fáeláin m. Cellaich m. Dúnchada m. Murchada.
• Hereditary Chief or Clan chief: Mac Gilla Mo-Cholmóg
• Septs : Ó Duibhghin, Ó Tadhgain.
• Location - county, barony or townland: The land between the river Liffey and the 'Dublin' mountains.
• Cinéal : Uí Dúnlainge

  Uí Fáeláin

• Clan name : Uí Fáeláin
• Progenitor: Fáeláin m. Murchada m. Find m. Máel Mórda m. Muirecain m. Diarmata m. Rhuadri m. Fáeláin m. Murchada m. Bráen
• Hereditary Chief or Clan chief: Ó Broin
• Septs : MacEochaidh
• Location - county, barony or townland: Crioch Bhranach, and included the barony of Newcastle with parts of the baronies of Ballinacor and Arklow.
• Cinéal : Uí Dúnlainge

  Uí Fergusa

• Clan name : Uí Fergusa
• Progenitor: Fergus son of Dúnlang, son of Enna Nia, son of Bressal Bélach, son of Fiachu Baicced, son of Cathir Mor.
• Location - county, barony or townland: Their traditional territory immediately west of Dublin prior to the arrival of the Vikings, other sources give their territory between the river Liffey and Fir Cualand.
• Cinéal : Uí Dúnlainge

  Uí Briúin Cualand

• Clan name : Uí Briúin Cualand
• Progenitor: Brian, son of Enna Nia, son of Bressal Bélach, son of Fiachu Baicced, son of Cathir Mor
• Hereditary Chief or Clan chief: Ó Coscrach
• Location - county, barony or townland: Baronies of Ballinacor North and Rathdown, in co. Wick., and the south half of the barony of Rathdown, in co. Dublin.
• Cinéal : Dál Niad Cuirp

  Uí Máeli Tuile

• Clan name : Uí Máeli Tuile
• Progenitor: Fiachu Ba h-Aiccid, a son of Cathaír Már
• Hereditary Chief or Clan chief:
• Location - county, barony or townland:
• Cinéal : Dál Niad Cuirp

  Uí Bairrche

• Clan name : Uí Bairrche
• Progenitor: Dáire Barraig m. Cathaír Máir
• Hereditary Chief or Clan chief: Mac Gormain
• Septs : Mic Raith, Ó Tresaigh, Ó Duibhin
• Location - county, barony or townland: Lord of Bargy at Slievemargy, Laois
• Cinéal : Dál Niad Cuirp
• Branches: Uí Bairrch Maige hAilbe, Uí Bairrche of Mag Argetrois, Uí Bairrche Maige Indergraith & Uí Bairrche Tíre, Uí Bairrche Magh dá chonn

  Uí Bairrch Maige hAilbe

• Clan name : Uí Bairrch Maige hAilbe
• Progenitor: Mostly from Eochu Guinech...Dáire Barraig m. Cathaír Máir
• Hereditary Chief or Clan chief:
• Septs : Úi Briccne, Úi Cellaig, Úi Scatháin, Úi Cutlacháin, Úi Máeláin, Úi Dobágu, Úi Fólachtáin, Úi Chommáin, Úi Gobbáin, Úi Nárbotha, Síl Saichtha, Úi Canáin, Úi Conamla, Úi Crítáin, Úi Drescáin,Úi Émíne, Úi Pecclíne, Úi Taidc, Úi Bóeth, Úi Brandubáin, Úi Brénaind, Úi Briúin
• Location - county, barony or townland: Baronies of Slievemargy in Co. Laois, parts of Idrone in Co. Carlow, and Kilkee and Moone in Co. Kildare)
• Cinéal : Dál Niad Cuirp
• Branches: Úi Cellaig

  Uí Bairrche Mag Argetrois

• Clan name : Uí Bairrche Mag Argetrois
• Progenitor: Dáire Barraig m. Cathaír Máir
• Location - county, barony or townland: The ancient name of Ballyragget in Kilkenny was Dún Tulach Uí mBairrche
• Cinéal : Dál Niad Cuirp
• Branches: Clann Síláin

  Uí Bairrche Magh dá chonn

• Clan name : Uí Bairrche Magh dá chonn
• Progenitor: Dáire Barraig m. Cathaír Máir
• Hereditary Chief or Clan chief: Úi Fétháin
• Septs : Ui Cearnaigh i Muigh Dha Chonn
• Location - county, barony or townland: Moyacom of East Carlow
• Cinéal : Dál Niad Cuirp

  Uí Bairrche Maige Dergráith

• Clan name : Uí Bairrche Maige Dergráith
• Progenitor: Dáire Barraig m. Cathaír Máir
• Septs : Úi Amsáin, Úi Crítáin, Úi Bodbáin, Úi Brócáin, Úi Buidechair
• Location - county, barony or townland:
• Cinéal : Dál Niad Cuirp
• Branches: Síl Cillíne Scothbán

  Uí Bairrche Tíre

• Clan name : Uí Bairrche Tíre
• Progenitor: Mostly from Féicc....Dáire Barraig m. Cathaír Máir
• Hereditary Chief or Clan chief: Uí Treasaigh
• Septs : Úi Dímatáin, Úi Mincháin, Síl Rossa mc Muiredaig, Úi Senáin, Úi Móenaig, Úi Rónáin, Úi Cuilíne dia fail Diarmait Glinni Uissen, Síol Cumaine, Úi Cutlacháin dia fail Diarmait Glinni Uissen, Úi Dobágu, Úi Móenacháin, Ui Nialláin
• Location - county, barony or townland: The barony of Bargy
• Cinéal : Dál Niad Cuirp

  Uí Crimthainn Áin

• Clan name : Uí Crimthainn Áin
• Progenitor: Crimthaind Áin m. Cathaír Máir
• Hereditary Chief or Clan chief: O'Duff
• Location - county, barony or townland: Dún Masc
• Cinéal : Dál Niad Cuirp

  Uí Failge

• Clan name : Uí Failge
• Progenitor: Donnchad mc Con Faifne m. Murchertaig m. Congalaig m. Duind Slébi m. Brógarbáin m. Conchobuir m. Find m. Máel Mórdae m. Conchobuir m. Flannacáin m. Cináeda m. Mugróin m. Óengussa m. Flaind m. Díumasaig m. Forannáin m. Congalaig m. Máel h-Umae m. Cathail m. Éogain Bruidne m. Nath Í m. Rossa Failgi m. Cathaír Máir.
• Hereditary Chief or Clan chief: Ua Conchobair Failghe
• Septs : O Caomhanaigh, O Tuathalaigh, O Branaigh, O Duinn, O Diomasaigh, O Duibhidhir, muinntear Riain, Mac an Chrosain, Ó hEimhin, Ó hUidhrin, Ó Reachtabra, Ó Seabhlain, Mac Spealáin, Ó hAimhergin, Ó Breacain, Ó Conarain, MacConnla,
• Location - county, barony or townland: The territory of Ui Failghe or Ophaley comprised the following Baronies: Geshill in the King's Co.; Upper Philipstown and Lower Philipstown in the King's Co.; Warrenstown and Collestown in the same County; Ophaley or Offaley in the Co. of Kildare; Portnahinch and Tinahinch in the Queen's County.
• Cinéal : Dál Niad Cuirp
• Branches: Uí Riagáin, and the Clann Máellugra, Maigh Aoife, Uí Mealla, Clann Mugróin, Uí Bercháin, Uí Nialláin, Uí Berraide, Cenel Aitheamháin, Uí Flaind, Uí Chormaic, Uí Móenaig, Uí Berraidi, Uí Airmedaig, Uí Máele Topair, Uí Chuilíne, Uí Máel Aithgén, Uí Maine, Uí Onchon

  Uí Riagáin

• Clan name : Uí Riagáin
• Progenitor: Cerball & Mac Tíre dá m. Con Bladma m. Con Allaid m. Fidallaid m. Duinn m. Duibgilla m. Máel Finne m. Riagáin m. Cináeda m. Mugróin m. Flaind.
• Hereditary Chief or Clan chief: Ó Riagain
• Location - county, barony or townland: The barony of Tinnahich, the most northern barony of Co Leix
• Cinéal : Uí Fáilghe

  Clann Máellugra a.k.a. Cenél Maoilughra, Clanmalier

• Clan name : Clann Máellugra a.k.a. Cenél Maoilughra, Clanmalier
• Progenitor: Flann m. Máel Ruanaid m. Cellaich m. Máel Augra m. Conchobuir m. Áeda m. Tomaltaich m. Flaind m. Díumasaich m. Congaile m. Forannáin m. Congaile m. Máel h-Umai m. Cathail m. Bruidge m. Nath Í m. Rosa Failgi.
• Hereditary Chief or Clan chief: Ua Díomasaigh
• Septs : Ó Bearghda, Ó Maoil Eimhin
• Location - county, barony or townland: Barony of Upper Philipstown in the King's County and the Barony of Portnahinch in the Queen's County.
• Cinéal : Uí Failge

  Clann Colgcan (Clann Cholgaín)

• Clan name : Clann Colgcan
• Progenitor: Domnall Úa Óengusa m. Áeda m. Uallacháin m. Taidgc m. Uallacháin m. Taidgc m. Domnaill m. Óengusa m. Cummascaig m. Colgcan m. Mugróin m. Flaind Dá Chongal m. Díumasaich m. Forannáin m. Congaile m. Máel h-Umai m. Cathail m. Bruidge m. Nath Í m. Rosa Failgi m. Cathaír Máir.
• Hereditary Chief or Clan chief: Ua hAonghusa
• Septs : Ua hUallachain, Uí Rotaidi, Uí Muricáin, Uí Bróen, Uí Cholgan, Ó Mael Eidigh, Ó Maolagain, Mac Cochlainn
• Location - county, barony or townland: Barony of Lower Philipstown, Co. Offaly
• Cinéal : Uí Failge
• Branches: O'Hennessy of Gailenga Bec, and of Uí Mac Uais

  Ui Mealla

• Clan name : Ui Mealla
• Progenitor: Rosa Failgi m. Cathaír Máir.
• Hereditary Chief or Clan chief: Ó Finnthighearn
• Septs : Mac an Bhaird
• Location - county, barony or townland: Uisneach, now in Galway and Roscommon
• Cinéal : Uí Failge

  Maigh Aoife

• Clan name : Maigh Aoife
• Progenitor: Rosa Failgi m. Cathaír Máir.
• Hereditary Chief or Clan chief:
• Septs : Ó Moenaigh, Ó Mughron, Ó Muireagain
• Location - county, barony or townland: Parsons of Ballymooney, Geasehill, Offaly
• Cinéal : Uí Failge

  Uí Enechglaiss

• Clan name : Uí Enechglaiss
• Progenitor: Dúnlang m. Fiachrach m. Fínnsnechtae m. Cináeda m. Cathail m. Fiachrach m. Dúnchada m. Dúnlaing m. Dúngalaig m. Thuamín m. Máel Doborchon m. Dícolla m. Éogain m. Muiredaig m. Amalgada m. Nath Í m. Bressail Enechglais m. Cathaír Máir.
• Hereditary Chief or Clan chief: Ua Fiachrach
• Location - county, barony or townland: South of Arklow in County Wicklow
• Cinéal : Dál Niad Cuirp
• Branches: Uí Inmiti, Uí Aithemon Mestige, Cenél Lugair Fatha h-uir dia tát Uí Cruchtáin, Síl Fuamnaige.i. Uí Toísecháin ó Druim Laígill: Síl Duib Damruis Uí Gobbáin & Uí Muirbetaig & Uí Dimbrogo Nuadat

  Uí Drona

• Clan name : Uí Drona
• Progenitor: Labraid Laidech, son of Bressal Bélach, son of Fiachu Baicced, son of Cathair Mór
• Hereditary Chief or Clan chief: Ó Riain
• Septs : Ó Domhnaill, Ó Dubhgilla, Ó hEideain
• Location - county, barony or townland: Baronies of Idrone East and West in county Carlow
• Cinéal : Dál Niad Cuirp
• Branches: Ui Drona Laighin

  Uí Cheithig a.k.a. Uí Ceataigh

• Clan name : Uí Cheithig a.k.a. Uí Ceataigh
• Progenitor: Cathair Mór's son Ailill Cétach
• Hereditary Chief or Clan chief: Ó Ceatfadha
• Location - county, barony or townland: Baronies of Ikeathy and Oughterany in northern Co. Kildare. Crích na Cétach: baronies of Warrenstown, co. Offaly and neighboring Upper Moyfenrath, co. Meath.
• Cinéal : Dál Niad Cuirp
• Branches: Cenél Ucha comprised the Uí Fithcellaigh, Uí Maili Derir, Uí Bóetain, Uí Broscai and Uí Folaing., Uí Mainchin of Tír Cenél nUcha, Ui Faebrannáin Uachtair Fine, Cilline mór, son of Coirpre, ancestor of the Ua Meimre and the Ui Foebraind of Uachtar Fine

  Cinel Uchae

• Clan name : Cinel Uchae
• Hereditary Chief or Clan chief:
• Septs : Ó Coscrach, Ó Beaghain, Ó Cobthach, Mac Fhogartach
• Location - county, barony or townland: Baronies of Ikeathy and Oughterany in northern Co. Kildare. Crích na Cétach: baronies of Warrenstown, co. Offaly and neighboring Upper Moyfenrath, co. Meath.
• Cinéal : Dál Niad Cuirp
• Branches: Uí Fithcellaigh, Uí Maili Derir, Uí Bóetain, Uí Broscai and Uí Folaing., Uí Mainchin of Tír Cenél nUcha

  Uí Dergmosaich h-ic Áth Chliath

• Clan name : Uí Dergmosaich h-ic Áth Chliath
• Progenitor: Dergmosach m. Cathaír Már
• Location - county, barony or townland: Áth Chliath
• Cinéal : Dál Niad Cuirp

  Uí Luascán

• Clan name : Uí Luascán
• Progenitor: Fergus Luascán m. Cathaír Már
• Cinéal : Dál Niad Cuirp

  Uí Timmíne

• Clan name : Uí Timmíne
• Progenitor: Eochu Timmíne m. Cathaír Már
• Cinéal : Dál Niad Cuirp
• Branches: Uí Báetáin, Uí Buide

  Uí Máil

• Clan name : Uí Máil
• Progenitor: Maine Máil m. Feidelmid Fir Aurglais m. Corbmaic Gelta Gáeth m. Niad Cuirb m. Con Corb
• Hereditary Chief or Clan chief: Uí Ceallaig Cuallan
• Septs : Uí Theig or Ó Taidhg,
• Location - county, barony or townland: The Glen of Imaal, Co. Wicklow
• Cinéal : Dál Niad Cuirp

  Uí Deaghaidh

• Clan name : Uí Deaghaidh
• Progenitor: Labraid Laidech, son of Bressal Bélach, son of Fiachu Baicced, son of Cathair Mór
• Hereditary Chief or Clan chief: Ó hAedha
• Location - county, barony or townland: Limerick Hill in north County Wexford, barony of Gorey
• Cinéal : Dál Niad Cuirp
• Branches: Uí Dega Tamhnaige of north Ossory and the Uí Dega Bic of Offaly

  Dál Cormaic Luisc

• Clan name : Dál Cormaic Luisc
• Progenitor: Corbmaic m. Con Corb
• Location - county, barony or townland: Located in the southernmost barony of County Kildare, that is the barony of Kilkea and Moone.
• Cinéal : Laighin
• Branches: Uí Labrada, Uí Gabla Fini, Uí Gabla Roírenn, Uí Buide, Uí Dega Bic.i. Uí Muiredaig, Uí Chuilind, Uí Labrada Cuthraige.i. Síl Fergusa Cuthig, Uí Chuircc, Uí Librén, Uí Ochrai.

  Uí Buide

• Clan name : Uí Buide
• Progenitor: Echthigern m. Donngusa m. Mencossaig m. Máelgairb m. h-Uargusa m. Buide m. Laidcnén m. Cuimmíne m. Colmáin Elténe m. Blaithmeic m. Áeda Indén m. Cathbad m. Labrada m. Imchada m. Cormaic m. Con Corb.
• Hereditary Chief or Clan chief: Ó Caollaidhe
• Location - county, barony or townland: Barony of Ballyadams, County Leix. East Kilkenny; and at Ballykealey, Carlow.
• Cinéal : Dál Cormaic Luisc

  Uí Labrada

• Clan name : Uí Labrada
• Progenitor: Sinchell m. Cenannáin m. Macha mc Cruaich m. Dulge m. Imchada m. Brolaich m. Lugdach m. Labrada m. Imchada m. Corbmaic m. Con Corb
• Septs : Cuthraighe
• Cinéal : Dál Cormaic Luisc
• Branches: Uí Labrada Cuthraige.i. Síl Fergusa Cuthig, Uí Chuircc, Uí Librén, Uí Ochrai

  Uí Gabla

• Clan name : Uí Gabla
• Progenitor: Sinchell m. Cenannáin m. Macha mc Cruaich m. Dulge m. Imchada m. Brolaich m. Lugdach m. Labrada m. Imchada m. Corbmaic m. Con Corb
• Septs : Cuthraighe?
• Location - county, barony or townland: Barony of North Salt in northern County Kildare & Roíriu a few miles south of Athy in south Kildare, respectively
• Cinéal : Dál Cormaic Luisc
• Branches: Uí Gabla Fine & Uí Gabla Roírenn

  Dál Messin Corb (Ui Meisincorp)

• Clan name : Dál Messin Corb
• Progenitor: Mesin Corb mc Con Corbb
• Hereditary Chief or Clan chief: Ua Feghaile
• Location - county, barony or townland: Wicklow mountains, to north of Arklow in county Wicklow. Originally, Liffey plain.
• Cinéal : Dál Messin Corb
• Branches: Uí Garrchon, Uí Con Corbb, Uí Con Cainnig, Uí Chúáin, Uí Alténi, Uí Doccomláin, Uí Bróccáin, Uí Garbáin, Uí Chon Galand, Uí Bróccéni, Cenél Ciaráin & Uí Techtaire, Uí Meic Aird Maigne & Uí Moínaig & Uí Conndoith & Uí Feichíne & Uí Cáechtangéni, Uí Noíthig & Uí Follomuin & Uí Forandlo, Uí Dímmae Cirr & Uí Congnaid, Uí Dubchróin & Uí Beraich, Uí Donnáin & Uí Sáráin

  Uí Garrchon

• Clan name : Uí Garrchon
• Progenitor: Domnall m. Fergaile m. Flaithnia m. Máel Kalland m. Gormáin m. Fáebuirdatha m. Dúngaili m. Cethernaig m. Fáeburdatha m. Dúngaile m. Cethernaig m. Fáebuirdatha m. Marcáin m. Cillíne m. Rónáin m. Sinill m. Conaill m. Con Chongalt m. Finnchada m. Garrchon m. Fothaid m. n-Echach Lámdeirg m. Mesin Corb mc Con Corbb.
• Hereditary Chief or Clan chief: Ua Feghaile
• Septs : Ó Corra, Ó Guaire, Ó Lionnain,
• Location - county, barony or townland: Kings of Fortuath Laigin at Bray, Wicklow.
• Cinéal : Dál Messin Corb
• Branches: Ui Saráin, Ui Brain Deilgine, Ui Cholmain Fordobuil

  Dal Cairbre Aradh (Dál Coirpri Aradh) Cliach

• Clan name : Dal Cairbre Aradh Cliach
• Progenitor: Mál mac Arbhara...Flaithbertach m. Crunnmaíl m. Commáin m. Fínáin m. Fhaigir m. Eirníne m. Féicc m. Meic Ieir m. Gossa m. Fabrich m. Máil m. Ainmerech m. Fir Roith m. Muine m. Fir Neud m. Fir Lugdach m. Buain m. Argatibair m. Cairpre Cluichechair mc Con Corb & Eithne Sithbaicce ingen side Óengusa Múisc
• Septs : Ó hIarlaith, Ó Geibhennach, Ó Cathalain, Ó Longaidh, Mac Muirnigh, Mac Bearthagra
• Location - county, barony or townland: Ara Chliach was centered east of the city of Limerick, perhaps in or near the baronies of Clanwilliam and Coonagh in northeastern county Limerick.
• Cinéal : Dál Cairpre Cluichechair
• Branches: Uaithne Cliach, Uí Cuanaigh

  Dal Cairbre Aradh Tíre

• Clan name : Dal Cairbre Aradh Tíre
• Progenitor: Finnchaidh, son of Ferroith...Connaid m. Máeli Doburchon m. Lóchéne m. Demle m. Lommáin m. Cuirc m. Findchada m. h-Írchada m. Fir Roith m. Fir Nuad m. Buain m. Airgetbrain m. Cairpri Cluichechair m. Con Corb unum genus est & Dál Cairpri Arad Tíre.
• Hereditary Chief or Clan chief: Ó Riada, Ó Donnagain
• Septs : Ó Murnain, Ó hAinmhireach, Ó Bodhran, Ó Danchair, Ó Dubh Dabharc, Ó Loingsigh
• Location - county, barony or townland: Co. Tipperary
• Cinéal : Dál Cairpre Cluichechair
• Branches: Uaithne Tíre

  Dál Coirpri Cliach (Dál Coirpri Loingsic Beic)

• Clan name : Dál Coirpri Cliach
• Progenitor: Lughaidh Corb from,..Cairpre Cluichechair mc Con Corb & Eithne Sithbaicce ingen side Óengusa Múisc
• Location - county, barony or townland: Barony of Idrone in Co. Carlow.
• Cinéal : Dál Cairpre Cluichechair
• Branches: Dál Coirpri Loingsic

  Dál Coirpri Loingsic

• Clan name : Dál Coirpri Loingsic
• Progenitor: Coirpri Musc the poet, who received the land of Tír nAmhais from Aongus Musc....Lughaidh Corb from,..Cairpre Cluichechair mc Con Corb & Eithne Sithbaicce ingen side Óengusa Múisc
• Location - county, barony or townland: Munster
• Cinéal : Dál Coirpri in Ara Cliach

  Uí nEirc (Ui Maic Eirce)

• Clan name : Uí nEirc
• Progenitor: Tuthal son of Muirithe, son of Maoltuile, son of Cuan, son of Conall, son of Grilline, son of Maoltuile son of Cuan, son of Conall, son of Grilline, son of Mac Eirc, son of Ailill Cennfada, son of Erc, son of Cairbre eabha, son of Brian, son of Fiacha Fidhgheinte
• Hereditary Chief or Clan chief: Ó Bruadar
• Septs : Mac Braoin
• Cinéal : Osraighe
• Branches: Na Clanna

  Uí Duach

• Clan name : Uí Duach
• Hereditary Chief or Clan chief: Ó Braonain
• Location - county, barony or townland: Airgetros in Maigib Raigne, Fassadinin, Idough barony, Kilkenny.
• Cinéal : Osraighe
• Branches: Clann Amhlaibh, Clann mic Conill, Clann c. mhic Kelowe, alias Clann mhic Gillenanaomh & Clann Muirchertaigh

  Ui Berchon (Ui Bearrchon)

• Clan name : Ui Berchon
• Progenitor: Iachtchair, a descendant of Óengus Osrithe
• Hereditary Chief or Clan chief: Ó Callaidhe
• Location - county, barony or townland: Old barony of Ibercon, forming the northern portion of the more modern barony of Ida, in southeast Co. Kilkenny
• Cinéal : Osraighe

  Ui Cruinn (Uí Crinn, Uí Grine)

• Clan name : Ui Cruinn
• Location - county, barony or townland: Medieval 'barony' of Igrin , in southeast Co. Kilkenny
• Cinéal : Dál Chormaic

  Uí Fairchelláin

• Clan name : Uí Fairchelláin
• Hereditary Chief or Clan chief: Ua hÚrachán
• Location - county, barony or townland: Parish of Offerlane, Co. Leix
• Cinéal : Osraighe

  Úi Scelláin

• Clan name : Úi Scelláin
• Progenitor: Scellan, who was sixth in descent from Óengus Osrithe
• Hereditary Chief or Clan chief: Ó Sceallain
• Location - county, barony or townland: Hui Scellain was in Sliabh Mairge, the mountain district which, extending into Kilkenny from Carlow and Queen's County, embraced the Castlewarren, Johnswell, and Kilmogar hills, in the north of the Barony of Gowran
• Cinéal : Osraighe

  Tuath-an-Toraidh

• Clan name : Tuath-an-Toraidh
• Hereditary Chief or Clan chief: Ua Dubhsláine
• Location - county, barony or townland: Coill Uachtarach, barony of Upper Woods, Co. Leix
• Cinéal : Osraighe

  Úi Geintich

• Clan name : Úi Geintich
• Hereditary Chief or Clan chief: Ua Donnachadha
• Location - county, barony or townland: Ogenty , Barony of Gowran, Co. Kilkenny.
• Cinéal : Osraighe,

  Fothairt in Chairn a.k.a. Fothar Tíre

• Clan name : Fothairt in Chairn a.k.a. Fothar Tíre
• Progenitor: Sétna, the son of Artt Cerp, son of Cairbre Niad, son of Cormac Már, son of Óengus Mend, son of Eochaid Find Fuath n-Airtt, son of Feidhlimidh Reachtmhar, son of Tuathal Teachtmhar
• Hereditary Chief or Clan chief: Ó Lorcain
• Location - county, barony or townland: Barony of Forth, Co. Wexford
• Cinéal : Fotharta
• Branches: Fothairt Fili, Fothairt Tuile, Fothairt Maige Ítha, Fothairt Imchlár oc Ard Macha & Fothairt Bile.

  Fothairt Feadh a.k.a. Fotharta Osnadhaigh

• Clan name : Fothairt Feadh a.k.a. Fotharta Osnadhaigh
• Progenitor: Dub Indrecht m. Fergusa m. Moínaig m. Fínáin m. Rónáin m. Echach m. Báeth m. Nannida m. Féicc m. Ier m. Cathbath m. Adnaich m. Airt Chirp m. m. Coirpri Niad, in descent from Cormac Már m. Óengusa Mind m. Eochaid Find Fuath n-Airtt m. Feidelmid Rechtada m. Thuathail Techtmair
• Hereditary Chief or Clan chief: Ó Nuallain
• Septs : Ó Bolguidhir, Ó Cobthach, Ó Luinin,
• Location - county, barony or townland: Barony of Forth, Co. Carlow
• Cinéal : Fotharta
• Branches: Fothairt Airthir Liphi, Fotharta Airbrech fri Brí Ele aniar, and Fotharta Fer Cúl, Fothar Breg; alias Fothar Mac nDeichill of Bregia.

  Beann Traidhe

• Clan name : Beann Traidhe
• Progenitor: Cillíne m. Dochartaich m. Eóin m. Feromuin m. Aildíne m. Oirenn m. Mágach m. Cellaich Croto m. Nechta m. Lugna m. Inomuin m. Benta a quo Bentraige nominantur nó Benta filius Conchobuir m. Nessa ut alii dicunt m. Máil m. Formáil m. Sírnae m. Forich m. Rochada m. Clothnai m. Coirbb m. Sethrann m. Loga m. Cethnenn.
• Hereditary Chief or Clan chief: Ó Coigligh Clann Cosgraigh
• Septs : Ó Beice, Ó Bogaigh, Ó Cluainaigh
• Cinéal : Cruithin

  Laeghis

• Clan name : Laeghis
• Progenitor: Fachtna m. Milige a quo Baccán m. Brain m. Eircc h-Ubulchind m. Feidelmid mc Findchada m. Fiachach Uanchind m. Dáire m. Rossa m. Ogomain m. Fergusa Múlcheist m. Fachtna m. Milige m. Intait m. Lugdach Loíchsi m. Conaill Cernaich.
• Hereditary Chief or Clan chief: Ó Mordha
• Septs : Mac Gaethin, Mac Ceadach, Ó Leathlobhar, Ó hArraghain, Ó Liathain, Mac Laoidhigh, Ó Suaird, Ó Broithe, Ó Casain, Ó Deoradhain, Ó Dunlaing, Ó Duibhgainn,
• Location - county, barony or townland: Co. Laois
• Cinéal : Laeghis

  Cinel Crimthann

• Clan name : Cinel Crimthann
• Hereditary Chief or Clan chief: Ó Duibh
• Septs : Ó Dubhuidhe, Ó hIndreadhain
• Location - county, barony or townland: Ballyduff, Stradbally, Co. Laois. Lord of Creamhthainn
• Cinéal : Laeghis
• Branches: Ui Crimthainn Áin

  Ui Mic Uais Breagh a.k.a. Muintir Fhiodhbhuide

• Clan name : Ui Mic Uais Breagh a.k.a. Muintir Fhiodhbhuide
• Progenitor:
• Hereditary Chief or Clan chief: Mac Fhiodh bhuidhe
• Septs : Ó hIffernain
• Location - county, barony or townland: Mountrath, Co. Laois
• Cinéal : Laeghis
• Branches: Clan Crecain

  Ui Meith Macha alias Ui-Meith Tire

• Clan name : Ui Meith Macha alias Ui-Meith Tire
• Progenitor: Imar m. Muircertaich m. Duibdarac m. Scannlain m. Indrachtaich m. Gairbid m. Ainbeith m. Mailbrigti m. Duibinnracht m. Taidg m. Innreachtaich m. Muiredaich m. Mailimuchair m. Scannlain m. Fingin m. Aedha m. Fiachrach m. Fiachrach m. Eogain m. Briuin m. Muiredaic Meith m. Imcadha m. Colla Da Crich m. Eachach Doimlen.
• Hereditary Chief or Clan chief: Ó hInnreachtaigh
• Septs : Ó hAinfeith, Ó Mael Brigdhe, Ó Gairbith, Ó hUarghuis, Ó Beice, Ó Mearain, Ó Smollain,
• Location - county, barony or townland: Barony of Monaghan, in the County of Monaghan
• Cinéal : Síl Colla Focrích
• Branches: Ui-Seaain, Ui-Meath-Mara

  Fernmag, or Fer Fernmaighe Farney

• Clan name : Fernmag, or Fer Fernmaighe
• Progenitor: Lethlobor m. Fogartaig m. Muiredaig m. Laidgnen m. Fogartaig m. Donnacain m. Fogartaig m. Ruadrach m. Mailfothardaig m. Arthraich m. Aithechda m. Mailduib m. Mailfothardaig m. Cronain m. Fergusa m. Nadsluaig m. Daim argait m. Echach m. Cremthaind Leith m. Feicc m. Dega Duirn m. Rochatha m. Colla Fochrich m. Echdach Doimlen.
• Hereditary Chief or Clan chief: Ó Ciaráin
• Septs : Uí Chríochain, Ó Donnagan, Ó Merligh, Ó Daimhin, Ó Dubhruis, Ó Feadagain, Ó Callada, Ó Leanain, Ó Luain, Ó Maoilfhinn, Ó Marcaigh, Mac Uaid, Ó Reannachain, Mac Ruari, Mac Sceachain, Mac Soilligh, Ó Tuathail, Ó Tomaltach, Mac Cuairt, Mac Raghiallaigh,
• Location - county, barony or townland: Barony of Farney, Co. Monaghan.
• Cinéal : Cenél Rochada, Síl Colla Focrích

  Clann Lugainn

• Clan name : Clann Lugainn
• Progenitor: Lugain, son of Irgalach, son of Eignich, son of Cormac, son of Fergus, son of Aed, son of Cormac, son of Cairpre Dam Argait. Daim Argait son of Echach son of Cremthaind Leith son of Feicc son of Dega Duirn son of Rochatha son of Colla Fochríth
• Hereditary Chief or Clan chief: Mag Uidhir Meicc h-Uidir
• Septs : Ó hEgneach, Ó Dubhdhara, Mac Maghnuis, Mac Gafraidh, Mac Gothraidh, MacAmhlaimh, Mac Asidha, Mac Gilla Uidhir, Mac Carmaic, Mac Aodh, Mac Ailghile, Mac Lochlainn, MacMurchadha, Mac Giolla Iosa, Mac Con Uladh, Mac Braoin,
• Location - county, barony or townland: Co. Fermanagh
• Cinéal : Síl Daim Argait

  Muintir Pheodachain (or Muintir Feodachain)

• Clan name : Muintir Pheodachain
• Progenitor: Cormac, son of Cairpre Dam Argait
• Hereditary Chief or Clan chief: Mac Giolla Finnein
• Location - county, barony or townland:
• Cinéal : Síl Daim Argait

  Muintir Caeman

• Clan name : Muintir Caeman
• Progenitor: Cormac, son of Cairpre Dam Argait
• Cinéal : Síl Daim Argait

  Clann Fergaile

• Clan name : Clann Fergaile
• Progenitor: Cormac, son of Cairpre Dam Argait
• Hereditary Chief or Clan chief: Ó Baoigheallain
• Septs : Mac Giolla Coisgle,
• Cinéal : Síl Daim Argait

  Sil nDaimine

• Clan name : Sil nDaimine
• Progenitor: Daimíne, son of Cairpre Dam Argait, son of Eocho, son of Crimthann Lethan, son of Fiacc, son of Daig Duirn, son of Rochaid, son of Colla Fochríth.
• Hereditary Chief or Clan chief: O'Maolruanaidh
• Location - county, barony or townland: Co. Fermanagh
• Cinéal : Síl Daim Argait, Uí Chremthaind

  Síl Tuathail an Tuaiscirt a.k.a. Fir Leamhna

• Clan name : Síl Tuathail an Tuaiscirt a.k.a. Fir Leamhna
• Progenitor: Tuathal, son of Daimíne, son of Cairpre Damargait, son of Echach, son of Crimthann, son of Fiacc, son of Daig Duirn, son of Rochaid, son of Colla Fochríth
• Hereditary Chief or Clan chief: Ó Caomhain
• Location - county, barony or townland: Clogher in modern county Tyrone.
• Cinéal : Síl Daim Argait

  Clan Ceallaigh

• Clan name : Clan Ceallaigh
• Progenitor: Daimine, son of Cairpre Dam Argait
• Hereditary Chief or Clan chief: Mac Domhnaill
• Septs : Ó Flanagain
• Location - county, barony or townland: Lord of Clankelly, Lisnaskea, Fermanagh
• Cinéal : Síl Daim Argait

  Clann Nadsluaigh

• Clan name : Clann Nadsluaigh
• Progenitor: Nadsluaigh, son of Cairpre Dam Argait, son of Eocho, son of Crimthann Lethan, son of Fiacc, son of Daig Duirn, son of Rochaid, son of Colla Fochríth
• Hereditary Chief or Clan chief: Mac Mathghamna
• Septs : Mac Íomhar, Mac Ardghail, Mac Bradaigh, Ó Cearbhail, Mac Pilib
• Location - county, barony or townland: Clones, Co. Monaghan
• Cinéal : Síl Daim Argait
• Branches: McMahon, O'Carroll.

  Uí Briúin Archaille

• Clan name : Uí Briúin Archaille
• Progenitor: Brian son of Daig Duirn son of Rochaid son of Colla Fochríth
• Hereditary Chief or Clan chief: Ua Tuamain
• Septs : Barony of Dungannon, co. Tyrone, which is located on the western side of Lough Neagh.
• Location - county, barony or townland: Co. Fermanagh
• Cinéal : Síl Daim Argait

  Uí Labrada

• Clan name : Uí Labrada
• Location - county, barony or townland: Co. Fermanagh
• Cinéal : Cenél Rochada

  Dál n-Oaich

• Clan name : Dál n-Oaich
• Progenitor: Crimthann Oach, son of Fiacc, son of Daig Duirn, son of Rochaid, son of Colla Fochríth
• Location - county, barony or townland: Co. Fermanagh
• Cinéal : Cenél Rochada

  Uí Meic Brócc

• Clan name : Uí Meic Brócc
• Progenitor: Echdach Amainsen, son of Crimthann, son of Fiacc, son of Daig Duirn, son of Rochaid, son of Colla Fochríth
• Location - county, barony or townland: Co. Fermanagh
• Cinéal : Cenél Rochada

  Úa Bresail Airthir Orior

• Clan name : Úa Bresail Airthir
• Progenitor: Buachalla m. Conchobuir Corraig m. Máel Dúin m. Fíngin m. Rónáin m. Tuathail m. Ailella m. Conaill m. Féicc m. Bressail m. Feidelmid m. Fiachrach Cassáin m. Collai Fochríth.
• Hereditary Chief or Clan chief: Ó Céalecháin
• Septs : Ó Cernachain, Ó Madadhain, Ó Tréinfhir, Mac Acadain, Ó Caisile, Ó Dalachain,
• Location - county, barony or townland: Northern Armagh
• Cinéal : Airthir, Síl Fiachra Cassán
• Branches: Clann Fermaighe, Muintir Caiseil

  Úa Bresail Macha

• Clan name : Úa Bresail Macha
• Progenitor: Cummascaig m. Conchobuir Chorraig m. Mailduin m. Finghin m. Ronain m. Thuathail m. Ailella m. Conaill m. Feicc m. Bressail m. Feidlimthe m. Fiachach m. Colla Fochrich.
• Hereditary Chief or Clan chief: Ó Gairbith
• Septs : Ó Gabhain, Ó Cairregain,
• Location - county, barony or townland: Northern Armagh
• Cinéal : Airthir

  Uí Echdach alias Ui Eachach Orior

• Clan name : Uí Echdach alias Ui Eachach Orior
• Progenitor: Murcad m. Ruaidri m. Muiredaich m. Ailella m. Cumascaigh m. Echadon m. Ruadacan m. Cellaich m. Ruadrach m. Conmaeil m. Airmedaich m. Feradaich m. Amalga m. Aililla m. Echach m. Feidlimthe m. Fiachrach m. Colla Da Crich.
• Hereditary Chief or Clan chief: Ó Ruadhacain
• Septs : Ó Domhnaill, Mag Labhradha, Ó hAileagain,
• Location - county, barony or townland: Northern Armagh
• Cinéal : Airthir
• Branches: Síl Ciarain Ua nEchach, Clann-Ruadhagain

  Uí Nialláin (Clan Cernaich)

• Clan name : Uí Nialláin
• Progenitor: Nialláin m. Féicc m. Feidelmid m. Fiachrach Cassáin m. Collai Fochríth.
• Hereditary Chief or Clan chief: Ua hAnluain
• Septs : ÓLorcain, Ó hUidhrin, Ó hAedhagain, Ó Muanain, Mac Riabhaigh, O Catharnaighe, Mac Gilla Fhiondain, Ó Cearnaigh, Mac Concaille, Ó Foirredh, Ó hEoir
• Location - county, barony or townland: The baronies of Oneilland East and West in modern county Armagh. O'Catharnaighe, Sionnach, Fox, Teathba, Kilcoursey, Offaly.
• Cinéal : Airthir

• Annals of the Four Masters
• History of Clan Fox
• History of Ireland

  Uí Dorrthainn (alias Ui Dorthinn, Dorthaind, Dorethainn, Tortain)

• Clan name : Uí Dorrthainn
• Progenitor: Dorthon, son of Fiacc, son of Feideilmid, son of Fiachra Cassán, son of Colla Fochríth
• Hereditary Chief or Clan chief: Maelan Gae Mor
• Septs : O'Maelan
• Location - county, barony or townland: Brechmag, centered perhaps near Ardbraccan, 2 miles west of Navan, co. Meath
• Cinéal : Airthir

  Uí Tréna

• Clan name : Uí Tréna
• Progenitor: Trian son of Feidhlimidh, son of Fiachra Cassan, son of Colla Da Crich.
• Location - county, barony or townland: Co. Armagh
• Cinéal : Síl Fiachra Cassán
• Branches: Craebh Carthaind

  Uí Eochada

• Clan name : Uí Eochada
• Progenitor: Fiachra Cassan, son of Colla Da Crich.
• Location - county, barony or townland: Co. Armagh
• Cinéal : Síl Fiachra Cassán

  Uí Cruind

• Clan name : Uí Cruind
• Progenitor: Fiachra Cassan, son of Colla Da Crich.
• Location - county, barony or townland: Co. Armagh
• Cinéal : Síl Fiachra Cassán

  Uí Maic Caírthinn alias Cenél Meic Cárthind

• Clan name : Uí Maic Caírthinn alias Cenél Meic Cárthind
• Progenitor: Cairthand, son of Eichin, son of Bec m. Cuanach m. mc. Dairi mc. Feidhlimidh mc. Echin mc. Fiacrach Tort mc. Echach mc. Colla Uais
• Hereditary Chief or Clan chief: Ó Cochlainn
• Septs : Ó Conghaile,Ó Cein, Mac Giolla Michill
• Location - county, barony or townland: Lough Foyle, Tirkeeran, County Londonderry,
• Cinéal : Uí Meic Uais, Síl Colla Uais
• Branches: Clan Conghail

  Ui Tuirtre

• Clan name : Ui Tuirtre
• Progenitor: Floind m. Muiredaig m. Indrachtaigh m. Reachtabrat m. Mailcraibhi m. Mailfotartaigh m. Suibni m. Furodran m. Bece m. Cuanach m. Dairi m. Feidhlimthe m. Fechin m. Fiacrach Tuirtri m. Eachach m. Colla Uais.
• Hereditary Chief or Clan chief: Mac Fhloinn
• Septs : Ó Foirbhithe, Ó hUid, Ó Maelruanaidh, Ó Domhnaillain,
• Location - county, barony or townland: West of Lough Neagh, as well as northwest of the great Lough in the modern barony of Loughinsholin, County Londonderry.
• Cinéal : Uí Meic Uais, Síl Colla Uais

  Uí Mac Uais Mide

• Clan name : Uí Mac Uais Mide
• Progenitor: Colla Uais.
• Hereditary Chief or Clan chief: Ua Comhraidhe
• Location - county, barony or townland: Moygoish barony, co. Westmeath)
• Cinéal : Uí Meic Uais, Síl Colla Uais

  Uí Mac Uais Breg

• Clan name : Uí Mac Uais Breg
• Progenitor: Colla Uais.
• Hereditary Chief or Clan chief: ÓhInnascaigh
• Septs : Ó Minnegain, Ó Cormaidhe, Ó Dubheoin,
• Location - county, barony or townland: Upper Kells/Lower Navan baronies, co. Meath
• Cinéal : Uí Meic Uais, Síl Colla Uais

  Cenel mBecce

• Clan name : Cenel mBecce
• Progenitor: Suibni mc. Mailodrain mc. Suibne mc. Bec mc. Cuanach mc. Dairi mc. Feidhlimidh mc. Echin mc. Fiacrach Tort mc. Echach mc. Colla Uais
• Location - county, barony or townland:
• Cinéal : Síl Colla Uais

  Uí Dáire

• Clan name : Uí Dáire
• Location - county, barony or townland:
• Cinéal : Síl Colla Uais

  Uí Cormaic

• Clan name : Uí Cormaic
• Progenitor: Brion, son of Echach, son of Colla Uais
• Cinéal : Síl Colla Uais

  Mac Murchadha

• Clan name : Mac Murchadha
• Progenitor: Murcha or Murchadha
• Hereditary Chief or Clan chief: MacMurchadha
• Septs : MacMurcha, MacMurchadha, Ó Murchadha
• Location - county, barony or townland: Ulster, Leinster and Scotland
• Cinéal : Uí Ceinnselaig
• Branches: Morrow, MacMurrough, MacMurray, Kavanagh, Murphy

  Mac Dhuibhinse

• Clan name : Mac Dhuibhinse
• Septs :
• Septs : Mac Avinchy, MacAvinchy, Macavinchey, Mcavinchy, Mc Avinchy - Translated as derived of Mac Duibhinse
• Septs : Mc Aninch, McIninch, McNinch - The descendant of Mac Duibhinse
• Septs : Vincent - Adopted
• Location - county, barony or townland: Ulster, Counties Armagh, Londonderry, Monaghan, Tyrone
• Cinéal :
• Location - county, barony or townland: Dublin
• Cinéal :
• Location - county, barony or townland: Limerick
• Cinéal :
• Extra: The Son of the man from the black island and/or Son of Black man of the Island and/or Son of the dark man of the island and/or Son of the Black Island
• Extra: "Son Duibhinse", a given name meaning "black island"
• Extra: An alternative, more colloquial nickname might apparently be "The Goat-Like One"
• Extra:
• Extra: The older record I found is

  Mac Craith (McGrath)

• Clan name : McGrath
• Progenitor:Echthighern
• Hereditary Chief or Clan chief:Dan McGrath
• Septs : Thomond
• Location - county, barony or townland:Munster