Hereditary Chief or Clan chief; Ua Néill Ruadh, aka Ó Néill Mór (O'Neill)
Septs (finte); Mac Lochlainn (McLaughlin), Mac Bearáin (Barron), Mac Seáin (McShane or Johnson), Mac Suibhne (MacSWEENEY, MacSWYN, SWAIN, SWINE), Ó Doibhlín (DEVLIN Swordbearer to O'Neill), Mac Giolla Easbaig (GILLESPIE, MacANASPIE, BISHOP), Mac Íomhair (MacIVER, MacKEEVER, MacURE, ORR), Mac Ladhmainn (MacCLEMENT, LAMOND, LYMON, MACLAMONT or CLEMENTS), Mac Conmidhe (MacNAMEE, MacCONAMY, MacMEADH, MEE), Mac Néill (Mac Niall), Mac Eoghain (MacKEAN, MacKEON).
Hereditary Chief or Clan chief; Ua hAghmaill (O'Hamill), Teallach Duibhbrailbe
Septs (finte); Ua Brolaigh, herenaghs of Tech na Coimairce and Clongleigh
Location - county, barony or townland; Glenconkeine, barony of Loughinsholin
Cinéal (Kinship); Cenél Eoghain
Branches; *Cenél mBinnig Glinne *Cenél mBindigh Locha Droichid (east of Magh Ith in Tirone) *Cenél mBindigh Tuaithe Rois (east of the Foyle) and one branch of the Ua Brolaigh
Hereditary Chief or Clan chief; Ó Gairmleadhaigh (O'Gormley)
Septs (finte); O Duineachaidh, Ó Croidheáin (O Crean), Ó Lúinigh (O Lunny), O'Tierney (Ó Tiarnaigh), O'Kelly (Ó Ceallaigh), O'Cernaghan (Ó Cearnacháin), O'Garvey (Ó Gairbhith), MacDonaghy (Mac Donncha), Ó Peatáin (O'Patton or Peyton) and Ó Luinigh (or O'Loony)
Location - county, barony or townland; Magh Itha in the barony of Raphoe, County Donegal
Progenitor; According to the O Clery Book of Genealogies, M. 790, lines 714 to 718; (Linea Antiqua, Royal Irish Academy MS 23D17, circa 1642), Eógan mac Niall's sons first conquered and held territory in the Bredach in Inishowen. They are enumerated in the following manner:
It e annso tellaighe na Bredchha
714. O Fheidlimid, cedus, muinter Ruarcan et muinter Treallan et muinter Slebhin et muinter Muirdelbaigh et clann Cumuscaigh et clann Narchon c: teallach Tuathail et clann Forcheirnn.
715. O Corbmac, uero, muinter Chele, ocus clann Minghoile, ocus clann Cerdan, ocus .h. Mail, et .h. Ultain et .h. Ruaigne.
716. O Dallan, .h. Eircinn, ocus .h. Cuiliun et .h. Reodan, .h. Ceallaigh, .h. Meran, ocus clann Cuan.
717. O Oilill, muinter Forceallaigh et muinter Mail raifthi, ocus .h. Rosaigh et .h. Gillagan, .h. Donnan, .h. Corpmaic, ocus sil meic Gluais, .h. Follamain, .h. Minain, .h. Uidir, .h. Fercumais,.h. Galan, .h. Donnugan uel .h. Branugan, .h. Ceallaigh, .h. Duibne et clann Filgaile.
718. O Oenghus, .h. Mail phoil, ocus .h. Brolaigh et cenel Oenghusa tulcha og (.i. mic Aini et mic Ecruiti). Et asd e an t-Aenghus sin do-choidh in echtra co righ Temra co nderna a muinerus fris, ocus cor fer comlann tar a chenn .i. cath mullaig Fedha et ba coimdith don chath, ocus d'Aenghus cor gair a cu .i. guan ar na cengal do chloich an atha co tainic ba guth an tigerna an cu .i. goan co ro-muigh an cath iertain co tucadh crich imdha, ocus erannus do, cor dhedhail da seacht macaib iertain; mac do, Echrach o tait clann Aenghusa eachrach i nn-ibh Uais breagh; mac ele do a crich fer Cul re Tulen atuaidh o ta clann Aenghusa cul et alii multi.
Clan name (Tuath); Sil Lugdach (also Cenél Luighdech)
Progenitor; Lugdach m. Sétnai mic Fergus m. Conaill Gulban m. Néill Noígiallaig
Hereditary Chief or Clan chief; Ó Domhnaill (O'Donnell)
Septs (finte); Uí Baoighill (O'Boyles) and the Uí Dochartaigh (O'Dohertys, chiefs of Arda Midhair or Ardmire, perhaps the Finn Valley) Ua Cairbre, Ó Duibhne (DEENY DEANY, DEENEY, DENNY, PEOPLES), Ó Daighre (DEERY, DARRY, DERRY), Mac Dailredochar (DOCKERY DOCKREY, DOCKRY), Ó Dunáin (DOONAN DONAYNE, DONNAN), Ó Dubhthach (Doohey), Ó Glacáin (Glacken), Mac Reannacháin (GRANAHAN, CRENAHAN, CRENAGHAN), Ó hEarghaile (HARLEY HARREL, HARRILY, HERAL), Ó hEigneacháin (HENEGAN HANAGHAN, HANNIGAN), Ó hOireachtaigh (HERAGHTY,ERACHTY, ERRARTY), Mac Meanman (MacMENAMIN, MacMENAM, MacMENAMY), Mac Maongail (MacMONAGLE, MONEYGAL), Ó Coigligh (QUIGLEY, QUIGLY, COGLEY, KEGLEY, TWIGLEY, QUIGG), Mac Robhartaigh (Roarty), Ó Robharcháin (ROWAN, RAGHAN, ROANE, ROHAN, ROUGHAN), Ó Scannail (SCANNELL, SCANLAN), Ó Toráin (TARRANT, TORAN, TORRENS), Mac Muircheartaigh (BREARTY, MacBREARTIE, MacMURTY), Mac Giolla Comhghaill (COYLE COWLE, MacILHOYLE, MULCOYLE), Ó Cromlaoich (CRUMLEY CROMLEY, CRUMLISH, CRUMMELL).
Location - county, barony or townland; Northern County Donegal
Progenitor; Baighill m Bradagain m Muirchertaigh m Cindfhaeladh
Hereditary Chief or Clan chief; Ua Bhaeighill (O'Boyle)
Septs (finte);
Location - county, barony or townland; Tir Ainmireach (around Ardara), Three Tuatha (around Falcarragh and Kilmacrennan) and barony of Boylagh in County Donegal.
Progenitor; Baoighill m Bradagáin m Muirchertaigh m Cindfhaeladh
Hereditary Chief or Clan chief; Ó Cearnacháin (e.g. Kernaghan) and Ó Dalachain
Septs (finte);
Location - county, barony or townland; Tuath Bladhach (Bladhaigh)anglicized Tuath Doe (now Creeslough & Dunfanaghy), south of Ros-Iorguil (now Downing's & Carrigart) County Donegal
Progenitor; Enda, the youngest son of Niall of the Nine Hostages
Hereditary Chief or Clan chief; ua Lapáin (O'Lappin, Delap) and Aa h-Eicnechan (roughly O'Heneghan)
Septs (finte); Ua Bresleáin (O'Breslen or Breslin)
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.
Progenitor; Cairbre, son of Niall of the Nine Hostages
Hereditary Chief or Clan chief; Ó Maolchloiche (O'Mulclohy), a name which was later mistranslated to Stone
Septs (finte); Ua Bresleáin (O'Breslen or Breslin)
Location - county, barony or townland; "Críoch Cairpre Droma Cliab" of northern County Sligo and northeast County Leitrim. Barony of Carbury in North Sligo.
Cinéal (Kinship); Uíbh Néill a' Tuaisceart
Branches; O'Breslin, chiefs in Fanad, Uí Cairpri Laigen (Ua Chiardha or O'Keary, O'Carey), Cairpre Gabra (Ó Ronáin, O'Ronan)
Progenitor; Conmaic (a quo Conmaicne) m. Oirbsen Máir (a quo Loch n-Oirbsen)...ultimately Fergus mac Roich
Hereditary Chief or Clan chief; Úa Cadhla (O'Queally or O'Kealy)
Septs (finte); Mac Conghaile (Conneely, MacNeela), Ó Clochartaigh (Cloherty or Stone),Ó Dubháin (Devany), Mac Fualáin\Ó Cualáin (FOLAN , FOLAND, FOLANE).
Location - county, barony or townland; Connemara in western Co. Galway.
Progenitor; Éogan Cáech (Síl Mella,), son of Nath Í, and great-grandson of Éana Cionnsealach
Hereditary Chief or Clan chief; Mac Murchadha sept (MacMurrough, Kinsella), Kavanagh (Mac Murchadha Caomhánach or Ó Caomhánaigh). Current Chief is William Butler Kavanagh (Wales)
Septs (finte); Ua Finnthighearn (Finneran), Mac Bhadach (VADDOCK, MADDOCK, WADDICK, WADDOCK), Mac Dáibhí Mór (DAVIDSON, DAVIS, DAVYMORE, MacDavie More), Ó Dúnlaing (DOWLING, DOOLAN, DOOLEN, DOWLAN, DUNLANG; Síol Elaigh sept)
Location - county, barony or townland; South Wicklow & north-east Wexford
Progenitor; Cormaicc m. Nath Í m. Crimthaind m. Énnai Ceinselaig
Hereditary Chief or Clan chief;
Septs (finte);
Location - county, barony or townland; River Slaney basin in County Wexford, the MacMurrough royal demesne around Ferns, as well as the barony of Scarawalsh
Progenitor; Fergus son of Dúnlang, son of Enna Nia, son of Bressal Bélach, son of Fiachu Baicced, son of Cathir Mor.
Hereditary Chief or Clan chief;
Septs (finte);
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.
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 (Cosgrave, or Cosgrove)
Septs (finte);
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.
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 (O'Connor Faly)
Septs (finte); O Caomhanaigh, O Tuathalaigh, O Branaigh, Mac Giolla Phadraig, O Duinn, O Diomasaigh, O Duibhidhir, muinntear Riain, Mac an Chrosain (MacCROSSAN), Ó hEimhin (HEAVEN EVANS, EVINS, HEAVAN), Ó hUidhrin (HEERIN, HEERAN, HEERANE, HEFFRON, HERANE, HEVERIN, HYRANE), Ó Reachtabra (RAFTER RAFFTER, RAFTERY, RAFTIS, RAGHTORE, WRAFTER), Ó Seabhlain (HEVLIN, SHOVELIN, TEVLIN), Mac Spealáin (SPILLANE, SMOLLEN, SPALANE, SPELLAN, SPELMAN), Ó hAimhergin (ERGIN, BERRIGAN, BERGAN, HAMERGIN), Ó Breacain (BRACKEN), Ó Conarain (CONDRON, CONDRAN, CONDRIN, CONERAN, CONORAN), MacConnla (CONLEY CONLY, CONNLA),
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.
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 (O'Regan and O'Dunne)
Septs (finte);
Location - county, barony or townland; The barony of Tinnahich, the most northern barony of Co Leix (Laois)
Clan name (Tuath); Clann Máellugra aka 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 (Dempsey)
Septs (finte); Ó Bearghda (BARRY, BEARY), Ó Maoil Eimhin (MULLAVIN MALLAVIN, MacLAVIN, MULLEVANE, MULLEVEN, MULLIVANE, Ó Coinin (CONINE, CUNEEN, KINANE, KINNEEN)
Location - county, barony or townland; Barony of Upper Philipstown in the King's County and the Barony of Portnahinch in the Queen's County.
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. Éogain] m. Bruidge m. Nath Í m. Rosa Failgi m. Cathaír Máir.
Hereditary Chief or Clan chief; Ua hAonghusa (O'Hennessy)
Septs (finte); Ua hUallachain (O'Holohan or O'Houlihan), Uí Rotaidi, Uí Muricáin, Uí Bróen, Uí Cholgan, Ó Mael Eidigh (MULEADY, MALADY, MALLEW, MELODY, MILEY, MILLEA), Ó Maolagain (MULLIGAN, MILLICAN, MILLIKAN, MILLIKEN), Mac Cochlainn (COLGAN)
Location - county, barony or townland; Barony of Lower Philipstown, Co. Offaly
Cinéal (Kinship); Uí Failge
Branches; O'Hennessy of Gailenga Bec, and of Uí Mac Uais
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. Beraig] m. Muiredaig m. Amalgada m. Nath Í m. Bressail Enechglais (a quo Uí Enechglais) m. Cathaír Máir.
Hereditary Chief or Clan chief; Ua Fiachrach (O'Feary, FEERY, FEIGHRY, FEHERY, FEEREY, HUNT)
Septs (finte);
Location - county, barony or townland; South of Arklow in County Wicklow
Cinéal (Kinship); 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
Progenitor; Cathair Mór's son Ailill Cétach (Céthech)
Hereditary Chief or Clan chief; Ó Ceatfadha (KEATY, KEATHY)
Septs (finte);
Location - county, barony or townland; Baronies of Ikeathy and Oughterany in northern Co. Kildare (Cenel n-Ucha and Uachtar Fine,respectively). Crích na Cétach: baronies of Warrenstown, co. Offaly and neighboring Upper Moyfenrath, co. Meath.
Cinéal (Kinship); 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 (of Ui Fine), Cilline mór, son of Coirpre, ancestor of the Ua Meimre and the Ui Foebraind of Uachtar Fine
Septs (finte); Ó Coscrach (COSGRAVE, COSGROVE, COSKRY, CUSKER,), Ó Beaghain (BEHAN, BEAGHAN, BEAN, BEEGAN, BEGGANE, BEHANE, BIGANE, BIGGANE,BIGGINS, LITTLE), Ó Cobthach (COFFEY COFFEE, COFFIE, COFFY, COWEY, COWHEY, COWHIG), Mac Fhogartach (GOGARTY, GOGERTY, GOGGARTY)
Location - county, barony or townland; Baronies of Ikeathy and Oughterany in northern Co. Kildare (Cenel n-Ucha and Uachtar Fine,respectively). Crích na Cétach: baronies of Warrenstown, co. Offaly and neighboring Upper Moyfenrath, co. Meath.
Cinéal (Kinship); Dál Niad Cuirp
Branches; Uí Fithcellaigh, Uí Maili Derir, Uí Bóetain, Uí Broscai and Uí Folaing., Uí Mainchin of Tír Cenél nUcha (Clann Manchine at the Liffey)
Progenitor; Echthigern m. Donngusa m. Mencossaig m. Máelgairb m. h-Uargusa m. Buide (a quo Uí 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 (Queally, O'Kealy or O'Kelly)
Septs (finte);
Location - county, barony or townland; Barony of Ballyadams, County Leix. East Kilkenny; and at Ballykealey, Carlow.
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
Hereditary Chief or Clan chief;
Septs (finte); Cuthraighe? (Ui Cormaic Laighen)
Location - county, barony or townland; Barony of North Salt in northern County Kildare & Roíriu (now Mullaghreelion) a few miles south of Athy in south Kildare, respectively
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 (O'Farrelly)
Septs (finte); Ó Corra (CORR, CARRY, CARR), Ó Guaire (GORRY, GORY, GORE, GORRIE), Ó Lionnain (LENNON, LANNING, LEENAN, LENAN, LENANE, LENNANE),
Location - county, barony or townland; Kings of Fortuath Laigin at Bray, Wicklow.
Dal Cairbre Aradh (Dál Coirpri Aradh) Cliach[edit]
Clan name (Tuath); Dal Cairbre Aradh (Dál Coirpri 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
Hereditary Chief or Clan chief;
Septs (finte); Ó hIarlaith (HERLIHY, HARLEY, HURLEY), Ó Geibhennach (GIVNEY, COVENEY, GEANY, GEVENEY, GIBNEY, GUINAN, GUINEA, KEVENEY), Ó Cathalain (, Ó Cadhla (KEILY, KEALY, KEELY, KIELY), Ó Longaidh (LONG, LONGY), Mac Muirnigh (MURNEY, MORNIE, MORNEY), Mac Bearthagra (BERKERY BARAGRY, BARGARY, BARRAGRY, BERACHRY, BERKERRY)
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 (Kinship); Dál Cairpre Cluichechair
Branches; Uaithne Cliach, Uí Cuanaigh (MacMuirnigh, Ó Longaidh)
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 (REIDY, REEDY, REDDY, READY -W. Tipp.), Ó Donnagain (DONEGAN, DONNEGAN, DONNEGANE, DOONICAN, DOONIGAN, DUNICAN, DUNNIGAN)
Septs (finte); Ó Murnain (MURNANE, MARRINANE, MARNANE, WARREN-W. Tipp.), Ó hAinmhireach (HANBERRY, HANNEBERRY, HANBURY, HAMERY, ANSBORO-W. Tipp.), Ó Bodhran (BURRANE, BORAN -W.Tipp), Ó Danchair (DANAHER, DANAGHER), Ó Dubh Dabharc (DURACK, DOORICK -W.Tipp Uaithne Tíre), Ó Loingsigh (LYNCH LYNCHY, LENCH,LENCHY)
Location - county, barony or townland; Co. Tipperary (Aradh Tíre was located in northern Tipperary, within the half barony of Ara (and Owney) or the northern half of the barony of Owney and Ara.)
Cinéal (Kinship); Dál Cairpre Cluichechair
Branches; Uaithne Tíre
Dál Coirpri Cliach (Dál Coirpri Loingsic Beic)[edit]
Clan name (Tuath); Dál Coirpri Cliach (Dál Coirpri Loingsic Beic)
Progenitor; Lughaidh Corb from,..Cairpre Cluichechair mc Con Corb & Eithne Sithbaicce ingen side Óengusa Múisc
Hereditary Chief or Clan chief;
Septs (finte);
Location - county, barony or townland; Barony of Idrone in Co. Carlow (in Leinster).
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
Hereditary Chief or Clan chief;
Septs (finte);
Location - county, barony or townland; Munster
Cinéal (Kinship); Dál Coirpri in Ara Cliach (Dál Coirpri Loingsic Beic)
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 (a quo Ui Maic Eirce), son of Ailill Cennfada, son of Erc, son of Cairbre eabha, son of Brian, son of Fiacha Fidhgheinte (a quo Ui Fidhgeinte)
Hereditary Chief or Clan chief; Ó Bruadar (BRODER, BRODERICK, BROTHERS)
Septs (finte); Mac Braoin (BREEN, MacBREEN, BRUEN, BRUYN, BRYAN)
Progenitor; Iachtchair, a descendant of Aengus Osrithe
Hereditary Chief or Clan chief; Ó Callaidhe (O'Kelly, O'Kealy, O'Coely)
Septs (finte);
Location - county, barony or townland; Old barony of Ibercon, forming the northern portion of the more modern barony of Ida (O'Donovan), in southeast Co. Kilkenny
Progenitor; Scellan, who was sixth in descent from Aengus Osrithe
Hereditary Chief or Clan chief; Ó Sceallain (SCALLEN, SKALLEN, SKELLAN, SKELTON)
Septs (finte);
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
Clan name (Tuath); Fothairt in Chairn aka 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 (LARKIN, LARKAN, LARKEN, LARCOM, LARKING, LERKIN,)
Septs (finte);
Location - county, barony or townland; Barony of Forth, Co. Wexford
Clan name (Tuath); Fothairt Feadh aka 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 (a quo Fothairt) 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 (NOLAN, KNOWLAN- Laeghis)
Septs (finte); Ó Bolguidhir (BOLGER, BULGER), Ó Cobthach (COFFEY, COFFEE, COFFIE), Ó Luinin (Lineen),
Location - county, barony or townland; Barony of Forth, Co. Carlow
Cinéal (Kinship); Fotharta
Branches; Fothairt Airthir Liphi, Fotharta Airbrech fri Brí Ele aniar, and Fotharta Fer Cúl, Fothar Breg; alias Fothar Mac nDeichill of Bregia.
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 (O'Coskry, COGLEY, KEGLEY) Clann Cosgraigh (O'Coskry, Cosgry, Coskerry, Cosgrave)
Septs (finte); Ó Beice (BECK, BEAKY, BAKEY ), Ó Bogaigh (BUGGY BUGGEY, BOGGY), Ó Cluainaigh (CLOONEY, CLONEY)
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 (O'MORE, MOORE)
Septs (finte); Mac Gaethin (GAHAN, MacGEEHAN, MAGEEHAN), Mac Ceadach (KEADY, KEADIE, KEDDY, KEEDIE, KEEDY, MACKEADY), Ó Leathlobhar (LALOR, LAWLOR), Ó hArraghain (HARRIGAN, HARAGHAN, HARAHAN), Ó Liathain, Mac Laoidhigh (LEE, MacLEA, MacLEE), Ó Suaird (SWORDS SORD, SOURDES, SUARD), Ó Broithe (BROPHY, BROFIE), Ó Casain (CASHIN, KISSANE), Ó Deoradhain (DORAN, DORRIAN), Ó Dunlaing (DOWLING), Ó Duibhgainn (Deegan),
Clan name (Tuath); 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 (a quo H. Meith) m. Imcadha m. Colla Da Crich m. Eachach Doimlen.
Hereditary Chief or Clan chief; Ó hInnreachtaigh (O'Hanratty)
Septs (finte); Ó hAinfeith (HANVEY, HANNAY, HANNEY), Ó Mael Brigdhe (MULREADY, MULBREEDY, MULBRIDE, MULREEDY, MURREADY, MULREDDY), Ó Gairbith (GARVEY), Ó hUarghuis (HORISH,HORISKY, HOURISKEY, WHORISKEY, WATERS, CALDWELL), Ó Beice (BECK, BEAKY, BAKEY), Ó Mearain (MARRON MARRAN, MARRANE, MARREN, MEARN), Ó Smollain (SMOLLEN,SMULLEN),
Location - county, barony or townland; Barony of Monaghan, in the County of Monaghan
Clan name (Tuath); Fernmag, or Fer Fernmaighe [Farney]
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 (O'Kieran)
Septs (finte); Uí Chríochain (O'Creehan, CREHAN, CREIGHTON, CRICHTON, Uí Lorcáin, Mac Cuilinn (MacQUILLAN), Ó Donnagan (DONEGAN, DONNEGAN, DONNEGANE), Ó Merligh (MARLEY, MARLIE), Ó Daimhin (DEVINE, DEVANE, DEVIN), Ó Dubhruis (DOORISH, DORISH, DORIS, DOURISH), Ó Feadagain (FEDEGAN FADDIGAN, FEDDIGAN), Ó Callada (KELLEDY KALLADIE, KEELEDIE, KELEEDY), Ó Leanain (Leynan), Ó Luain (ÓLOAN, LOON, LUAN, LAMB), Ó Maoilfhinn (MALINN MALLIN, MALYNN, MILLYNN, MULLIN), Ó Marcaigh (MARKEY MARKAY, RIDER, RYDER), Mac Uaid (MacQUAID MacQUADE), Ó Reannachain (RENEHAN RENAGHAN, RENIGHANE, RONAGHAN), Mac Ruari (RORY MacGRORY, MacRURY), Mac Sceachain (SKEHAN SKEEHAN, THORNTON), Mac Soilligh (SOLLY, SOLLEY, SOLEY, SULLY), Ó Tuathail (Toal), Ó Tomaltach (TUMELTY, TOMALTY), Mac Cuairt (MacCOURT, COURTNEY), Mac Raghiallaigh (CRILLY, CROLY, CROLLY),
Location - county, barony or townland; Barony of Farney, Co. Monaghan.
Cinéal (Kinship); Cenél Rochada, Síl Colla Focrích
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 (Corpri) son of Echach son of Cremthaind Leith son of Feicc son of Dega Duirn son of Rochatha son of Colla Fochríth
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 (da-Chrioch).
Hereditary Chief or Clan chief; O'Maolruanaidh (Mulrooney)
Septs (finte);
Location - county, barony or townland; Co. Fermanagh
Clan name (Tuath); Síl Tuathail an Tuaiscirt aka Fir Leamhna
Progenitor; Tuathal, son of Daimíne (a quo Síl Daimini), 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
Septs (finte);
Location - county, barony or townland; Clogher (Clochar mac nDaimin) in modern county Tyrone.
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 (da-Chrioch)
Hereditary Chief or Clan chief; Mac Mathghamna (MacMAHON, MacMAHAN, MAGHAN)
Septs (finte); Mac Íomhar (MacGiver, KEEVER MacKEEVER, MACEVER, MACKEVER, KEVER), Mac Ardghail (MacARDLE, ARDALL, MacCARDLE, CARDWELL), Mac Bradaigh (Brady), Ó Cearbhail (CARROLL, CAROOL), Mac Pilib (MacPHILLIPS)
Location - county, barony or townland; Clones, Co. Monaghan
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 (KEALAGHAN, KEALAHAN, KEELAGHAN)
Septs (finte); Ó Cernachain (KERNAGHAN, KEARNAGHAN), Ó Madadhain (Madigan), Ó Tréinfhir (TRAINOR TRAINER, TRAYNER), Mac Acadain (MacCADDEN, CADIGAN, MacADAM, MacADAN), Ó Caisile (CASSILY CASHEL, CASLEY, CASSELL, CASSELY, CUSHLEY), Ó Dalachain (DULLAHAN, DALLAGHAN, DALLAHAN, DALLAN, DOLOGHAN),
Location - county, barony or townland; Northern Armagh
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 (GARVEY)
Septs (finte); Ó Gabhain (GOAN, SMITH, SMYTH), Ó Cairregain (KERRIGAN, CARRIGAN, CARAGHAN, CARAHAN),
Location - county, barony or townland; Northern Armagh
Clan name (Tuath); 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 (ROGAN, REDEGAN, ROHAGAN, ROOGAN, RODAGHAN)
Clan name (Tuath); Uí Maic Caírthinn alias Cenél Meic Cárthind
Progenitor; Cairthand (a quo H. Mc. Carthaind), son of Eichin, son of Bec (ri Airgiall) m. Cuanach m. mc. Dairi mc. Feidhlimidh mc. Echin mc. Fiacrach Tort mc. Echach mc. Colla Uais
Hereditary Chief or Clan chief; Ó Cochlainn (COLGAN)
Septs (finte); Ó Conghaile (Connell),Ó Cein (KEENE, KEEN, KAIN, KANE), Mac Giolla Michill (MacMEEL MacGILMIHILL, MacGILMICHILL, MITCHELL)
Location - county, barony or townland; Lough Foyle, Tirkeeran, County Londonderry,
Progenitor; Crichain m. Cathasaich m. Mailcothaig m. Guairi m. Forannan m. Ainmerech m. Cormaic m. Dochairtaig m. Fiachach m. Eirc m. Eachach m. Colla Oss
Hereditary Chief or Clan chief; Ó Críochain (O'Crehan or Creighton)
Septs (finte); Ó hAedha (ÓHea),
Location - county, barony or townland; Ardstraw, Tyrone
Progenitor; Floind (otait Ui Loind) 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 (O'Flynn or O'Lynn)
Septs (finte); Ó Foirbhithe (FURPHY, FURFIE, FURPHEY, FURVEY), Ó hUid (HOOD HOUD, HUDE, MacHOOD, MAHOOD, ÓHOUD), Ó Maelruanaidh (MULROONEY, MULRONEY, MURRONY), Ó Domhnaillain (DONNELLAN, DONELAN),
Location - county, barony or townland; West of Lough Neagh (in modern County Tyrone), as well as northwest of the great Lough in the modern barony of Loughinsholin, County Londonderry.