Buile Shuibhne
Place and tribal names
(Onom. = Onomasticon Goedelicum)
(FM. = Annals of the Kingdom of Ireland by the Four Masters, ed. O’Donovan)
(Fy. = The Genealogies, Tribes and Customs of Hy-Fiachrach, ed. O’Donovan)
(Tp. = Topographical Poems, ed. O’Donovan)
(Lct. = Leabhar na gCeart, ed. O’Donovan)
(Mis. = Miscellany of the Celtic Society, ed. O’Donovan)
(Ls. = Ancient Laws of Ireland, ed. O’Donovan/O’Curry)
(ML. = Cath Mhuighe Léana, ed. O’Curry)
(Ra. = Reeves’ Ecclesiastical Antiquities of Down, Connor and Dromore)
(F. = Féilire Óengusso, ed. Stokes)
(Fg. = Félire hÚi Gormáin, ed. Stokes)
(Au. = Annals of Ulster, ed. Hennessy/MacCarthy)
(Pgi. = Parliamentary Gazeteer of Ireland)
In addition to the above online sources, identification of the placenames below is based on the Fascicles of the following publication, where available:
HDGP = Historical dictionary of Gaelic placenames (Ó Riain et al.)
The placenames marked with a star (*) below have been identified and appear in the Google Map above.
Airgetros, a territory on both sides of the River Nore, mainly in the barony of Fassadinin, Co. Kilkenny, but partly also on the West side in the baronies of Galmoy and Crannagh, Co. Kilkenny, and Clarmallagh (Map), Co. Laois, (FM. i p. 51, note g) (HDGP i p. 46, s.n. Airgeadros) (Onom. ‘airgetros’), §51
Alba, from the 9th Century, the Gaelic kingdom in Scotland, later the whole of Scotland (HDGP i p. 50, s.n. Alba (1)) (Onom. ‘alba’), §§15, 32, 45
*Alt Fharannáin, Alternan Park townland, barony of Tireragh (Map), Co. Sligo (Fy. pp. 258-259, note f) (HDGP i p. 53, s.n. Al(l)t Farannáin) (Onom. ‘alt fharannáin’), §§72, 73
*Árd Abla, Lissardowlan townland, barony of Ardagh (Map), Co. Longford (FM. i p. 393, note q) (HDGP i p. 77, s.n. Ard Abhla) (Onom. ‘árd abla’), §32
Bairche, the barony of Mourne, Mourne (Map), Co. Down (Au. i p. 217, note 14) (HDGP ii p. 74, s.n. Bairche; p. 158, s.n. Boirche (1)) (Onom. ‘bairche’), §§21, 32, 40, etc.
*Bairenn = Bóirenn, probably in the barony of Iveagh Upper, Lower Half, Iveagh Upper, Lower Half or Iveagh Upper, Upper Half, Iveagh Upper, Upper Half (Map), Co. Down; perhaps the townland of Burren, Burren (HDGP ii p. 74, s.n. Baireann; p.160, s.n. Boireann Dá Bheann = Boireann (2)) (Onom. ‘bairenn’, ‘bóirenn’), §40
*Banna, the River Bann, Bann River, in Co. Derry and Co. Down (FM. i p. 326, note m) (HDGP ii p. 78, s.n. Banna, (an) (1)) (Onom. ‘banna’), §§22, 23
*Benn Bogaine, Binbane townland, barony of Banagh (Map), Co. Donegal (Pgi. i p. 253 (438)) (HDGP ii p. 117, s.n. Beann Bhoghaine) (Onom. ‘b. bogaine’), §§41, 45
Benn Boirne, a peak in the barony of Burren (Map), Co. Clare (HDGP ii p. 117, s.n. Beann Bhoirne), §45
*Benn Foibne, Benyevenagh Mountain, Binevenagh Forest, barony of Keenaght (Map), Co. Derry (FM. iii p. 84, note x) (Ra. pp. 251-252, note v) (HDGP ii p. 121, s.n. Beann Fhoibhne) (Onom. ‘b. foibne’), §§41, 75
*Benn Gulban, Benbulbin Mountain, barony of Carbury (Map), Co. Sligo (FM. iii p. 493, note o) (HDGP ii p. 122, s.n. Beann Ghulba(i)n (1)) (Onom. ‘b. gulban’), §40
*Benn Iughoine, probably around Clonaheen townland, barony of Tinnahinch (Map), Co. Laois (HDGP ii p. 123, s.n. Beann Iughoine; p. 126, s.n. Beanna Iuchna; i, p. 25, s.n. Adharca (Iuchna)) (Onom. ‘adarca’), §45
*Benna Bairche, the Mourne Mountains, Mourne Mountains, Co. Down (FM. iv p. 1204 (558), note j) (HDGP ii p. 125, s.n. Beanna Boirche) (Onom. ‘benna bairche’), §§57, 58, 59, etc.
Benna Brain, probably near Arklow, Co. Wicklow (HDGP ii p. 118, s.n. Beann Bhrain), §67
Benna Broc, unidentified (HDGP ii p. 126, s.n. Beanna Broc), §40
*Berba, the River Barrow in Leinster, flows in Waterford Harbour (FM. i p. 14, note l) (HDGP ii p. 130, s.n. Bearbha, (an)) (Onom. ‘berba’), §45
*Bile Tiobradáin, in Toberdan townland, barony of Athlone South (Map), Co. Roscommon (HDGP ii p. 147, s.n. Bile Tiobradáin), §59
*Bóraime, probably Balboru Fort, in Ballyvally townland, barony of Tulla Lower (Map), Co. Clare (FM. i p. 526, note l) (HDGP ii p. 162, s.n. Bóraimhe, (an) (1)) (Onom. ‘bóraime’), §45
Bretain, Britons and their territory (HDGP ii p. 182, s.n. Breatain, (an)) (Onom. ‘bretain’), §46
*Búas, Bush River, River Bush, flowing to the North coast of Co. Antrim, through the baronies of Dunluce Upper, Dunluce Upper and Dunluce Lower, Dunluce Upper (Map) (FM. i p. 91, note d) (Ra. p. 77, note o) (HDGP ii p. 216, s.n. Buas) (Onom. ‘búas’), §47
Carn Cornáin, near Lough Neagh, Co. Antrim (F. p. 55 (114)) (HDGP iii p. 68, s.n. Carn Cornáin; p. 69, s.n. Carn Curnáin (2)) (Onom. ‘c. cornáin’), §40
Carn Lifi Luirc, in Mag Liphi, Leinster (HDGP iii p. 76, s.n. Carn Life Luirc), §40
*Carraig Alastair, Ailsa Craig, a rocky islet in the Firth of Clyde, South of the Isle of Arran, Scotland, (HDGP iii p. 85, s.n. Carraig Alastair), §§44, 45, 46
Cell Cua, unidentified (HDGP iii p. 152, s.n. Ceall Chua), §21
*Cell Dairbhile, perhaps an ecclesiastical site near St. Derivla’s Grave, in Fallmore townland, barony of Erris (Map), Co. Mayo (FM. iii p. 331, note g) (HDGP iii p. 163, s.n. Ceall Deirbhileadh) (Onom. ‘c. dairbhile’), §§24, 25
*Cell Lainne = Lann Rónáin Finn, Magheralin, Magheralin (Machaire Lainne), barony of Iveagh Lower, Upper Half, Iveagh Lower, Upper Half (Map), Co. Down (Ra. p. 313, note o, p. 378, note x) (HDGP iv p. 7, s.n. Ceall Lainne (2) = Lann Rónáin Fhinn) (Onom. ‘l. rónáin finn’), §§3, 6
Cell Lughaidhe, unidentified (HDGP iv p. 11, s.n. Ceall Lughaidhe), §40
*Cell Riadain, ‘Burial Ground’ in Kilrean Upper townland, barony of Boylagh (Map), Co. Donegal (HDGP iv p. 42, s.n. Ceall Riagháin (1)) (Onom. ‘c. riadain’), §15
*Cell Uí Súanaigh = Raithen, possibly Rahan Demesne townland, barony of Ballycowan (Map), Co. Offaly (HDGP iv p. 61, s.n. Ceall Uí Shuanaigh) (Onom. ‘raithen’), §32
Cenél Ainmire, a people and territory in and around the barony of Kilconway, Kilconway (Map), Co. Antrim (FM. i p. 353, A.D. 749) (Ra. p. 340, note f) (HDGP iv p. 100, s.n. Ceinéal Ainmhireach) (Onom. ‘c. ainmire’), §31
Cenél n-Eoghain, (Cenél Eóghain) (Map – Cenél Eóghain), the dominant segment of the Northern Uí Néill, originally in Inis Eoghain (mainly the baronies of Inishowen East and Inishown West (Map), Co. Donegal, including Ailech), later expanding into other parts of Ulster, especially Tír Eoghain (County Tyrone, County Tyrone), where their coronation site was Tulach Óc (FM. iii p. 7, note r) (HDGP iv p. 117, s.n. Ceinéal Eoghain) (Onom. ‘c. n-eoghain’, ‘síl eogain’, ‘t. eogain’), §45
*Cenn Tire, Kintyre, Argyll and Bute, Scotland (FM. i p. 244, note c) (HDGP iv p. 85, s.n. Ceann Tíre) (Onom. ‘c. tire’), §21
Cianacht, (Ciannachta of Glenn Geimin), (Map – Ciannachta), a people chiefly settled in Gleann Geimhin, Glengiven, barony of Keenaght, Keenaght (Map), Co. Derry (HDGP iv p. 137, s.n. Ciannacht(a)); p. 139, s.n. Ciannacht(a) Ghlinne Geimhin) (Lct. p. 122, note l) (FM. vi p. 1930, note i) (Onom. ‘cianacht’, ‘cianachta’, ‘c. glinne gaimen’), §§3, 6
*Cluain Boirend, ecclesiastical site in Cloonburren townland, barony of Moycarn (Map), Co. Roscommon (HDGP v p. 91, s.n. Cluain Boireann) (FM. i p. 209, note w) (Onom. ‘c. boirend’), §22
Cluain Cilli, in Co. Donegal (HDGP v p. 99, s.n. Cluain Cille), §§20, 21
Cluain Creamha, in Dál n-Araidhe, Co. Armagh (HDGP v p. 105, s.n. Cluain Creamha (5)), §35
*Conachail, the townland of Cunghill, barony of Leyny (Map), Co. Sligo (FM. ii p. 929, note g) (HDGP vi p. 38, s.n. Conachail (1)) (Onom. ‘conachail’), §40
Connachta, the territory west of the River Shannon (HDGP vi p. 48, s.n. Connachta) (Onom. ‘connachta’), §§59, 70, 72, etc.
Crích Gháille, in the East of Connacht, unidentified; see Bile Tiobradáin, §59
*Crotta Clíach, Galty Mountains, South Co. Tipperary and East Co. Limerick (Tp. p. lxxxiii (297), note 753) (Mm. pp. 426-427 (459-460)) (HDGP vi p. 129, s.n. Crota Cliach) (Onom. ‘crotta clíach’), §40
*Cruachan Aigle, Croaghpatrick Mountain, barony of Murrisk (Map), Co. Mayo (Au. ii pp. 86-87, note 1) (HDGP vi p. 136, s.n. Cruachán Aighle) (Onom. ‘c. aigle’), §§21, 45, 61
Cuailnge, the Cooley peninsula, barony of Dundalk Lower (Map), Co. Louth (Ls. i p. 46 (107), note 1) (HDGP vi p. 143, s.n. Cuailnge) (Onom. ‘cuailnge’), §§21, 27, 40
Dairbri, not identified (Onom. ‘dairbri’), §43
*Daire Choluim Chille, ecclesiastical site, townland, and city, Derry, Derry-Londonderry, in the barony North West Liberties of Derry, Co. Derry (FM. i pp. 178-179, note s) (HDGP vii p. 92, s.n. Doire (1)) (Onom. ‘d. choluim chille’), §23
Dál n-Araide, (Dál n-Araidhe), (Map – Dál nAraide), the dominant people of the Cruithne (Picts) of North-East Ulster in the early historic period who provided many overkings of Ulaidh. They occupied lands mainly in South Co. Armagh (East of the River Main), though some of their sub-kingdoms held territory in North Co. Down (Ra. pp. 334-348) (HDGP vii p. 14, s.n. Dál nAraidhe) (Onom. ‘d. n-araide’), §§1, 3, 13, etc.
Druim Cirb, not identified, §27
Druim Daimh, not identified (Onom. ‘d. daimh’), §25
Druim Fraoch, not identified, §25
Druim Gess, not identified, §73
Druim Iarainn, in Connachta; not identified, §§70, 71
Druim Lorgan, not identified, §51
*Dún Cermna, on the Old Head of Kinsale, Co. Cork (FM. i p. 44, note e) (Onom. ‘d. cermna’), §45
Dún Máil, not identified, §40
Dún Rodairce, not identified, §45
*Dún Sobairche, Dunseverick, Dunseverick, Co. Antrim (Ra. pp. 286-287) (FM. i p. 44, note d) (Onom. ‘d. sobairche’), §§41, 45, 67
Ealla, the barony of Duhallow (Map), Co. Cork (FM. vii p. 55) (Onom. ‘ealla’), §40
Echtge, see Sliabh Echtgi, §61
*Eig, the island of Eigg off the West coast of Scotland, §44
Es Dubthaig, not identified (Onom. ‘es dubthaig’), §50
*Es Ruaid, the falls of Assaroe on the River Erne at Ballyshannon, Co. Donegal (Fy. p. 76 (95), note c) (Onom. ‘es ruaid’), §77
*Etan Tairb, Edenterriff, in the parish of Annagh, barony of Tullygarvey (Map), Co. Cavan (Onom. ‘etan tairb’), §31
*Fid Gaible, Figile River, the name of a wood, then of the river that flows through it, in the parish of Clonsast, barony of Coolestown (Map), Co. Offaly (FM. ii p. 1064, note g) (Onom. ‘f. gaible’, ‘gabal’), §§39, 41, 68, etc.
Gabal, see Fid Gaible, §68
Gáille, see Crích Gháille, also Glais Gháille, §61
Glais Chille Cró, not identified, §75
Glais Gháille, not identified, §61
Glanamhrach, not identified, §58
*Glenn Aichle, Glenelly, Glenelly, a valley and river near Strabane, Strabane, in the barony of Strabane Lower, Strabane Lower (Map), Co. Tyrone (FM. i p. 488, note u) (Onom. ‘g. aichle’), §40
*Glenn Bolcáin, James G. O’Keeffe, following Reeves, suggests that Glenn Bolcáin is near Rasharkin, Rasharkin (Ros Ercáin); there is a ridge called Dunbolcain (or Drumbolcan) about a furlong North East of Rasharkin Church, Rasharkin Parish (Ra. p. 90, note o); Gearóid S. Mac Eoin suggests that Gleann Bolcáin is the same as Gleann na nGealt, in the townland of Glannagalt, parish of Kilgobban, barony of Corkaguiny (Map), Co. Kerry (Onom. ‘g. mbolcáin’), §§17, 19, 20, etc.
Glenn Chíach, see Glenn Bolcáin, §31
Glenn Ercáin, possibly near Rasharkin, Rasharkin (Ros Ercáin), a townland and parish in the barony of Kilconway, Kilconway (Map), Co. Antrim (Onom. ‘ros ercáin’), §§12, 13
Glenn na nEachtach, in Fid Gaible; not identified, §39
*Íle, Islay, in Scotland (FM. i p. 204, note a) (Onom. ‘íle’), §21
*Imblech Ibair, Emly, a town and parish in the barony of Clanwilliam (Map), Co. Tipperary (Ls. v p. 113 (136)) (Onom. ‘i. ibair’), §43
*Inis Bó Finne, Inishbofin, an island in the barony of Ballynahinch (Map), Co. Galway (Fy. p. 491) (Onom. ‘i. bó finne’), §77
*Inis Muridaig, Inishmurray, an island in the barony of Carbury (Map), Co. Sligo (Fy. p. 492) (Onom. ‘i. muridaig’), §44
Laigin, Leinster (Map) (Onom. ‘laigin’), §58
*Látharna, (Map – Latharna), the district about Larne, Larne, Co. Antrim (Ra. p. 54, note k, pp. 264-265) (FM. i p. 8, note b) (Onom. ‘látharna’), §40
Lethed Láin, not identified, §40
*Life, the River Liffey (FM. i pp. 454-455, note y) (Onom. ‘life’), §61
Líne, see Mag Line, §40
*Loch Cúan, Strangford Lough, Strangford Lough, (FM. i p. 7, note w) (Onom. ‘l. cúan’), §45
Loch Diolair, possibly near Druim Dilair at Belleek, Belleek, Co. Fermanagh (Onom. ‘d. dilair’), §23
*Loch Eirni, Upper Lough Erne, Upper Lough Erne, Co. Fermanagh (FM. i p. 47, note x) (Onom. ‘l. eirni’), §45
*Loch Léin, Lough Leane (the Lakes of Killarney), Co. Kerry (FM. v p. 1779, note c) (Onom. ‘l. léin’), §40
*Loch Rí, Lough Ree on the River Shannon (FM. i p. 344, note m) (Onom. ‘l. rí’), §59
Luachair Dedad, Sliabh Luachra, near Castleisland, Co. Kerry (FM. v p. 1720, note a) (Onom. ‘l. dedad’), §§68, 69
*Maenmag, now Moinmoy, a territory lying around Loughrea, Co. Galway (FM. i p. 28, note y) (Onom. ‘m. mag’), §59
Mag Aíi, the Maghery, between Roscommon and Elphin, barony of Roscommon (Map), Co. Roscommon (FM. iii p. 87-88, note h) (Onom. ‘m. aíi’, ‘ai’), §§51, 61
Mag Coba, (Uí Eathach Cobha) (Map – Uí Echach Coba), Cobha or Uí Echach Cobha was an ancient territory which formed a considerable part of Uí Echach Uladh, now the baronies of Iveagh Upper, Lower Half, Iveagh Upper, Upper Half, Iveagh Lower, Lower Half and Iveagh Lower, Upper Half(Map), Co. Down (Ra. p. 111, note m, pp. 349-350) (Onom. ‘m. coba’, ‘ui e. ulad’), §40
Mag Fáil, Ireland (Onom. ‘m. fáil’), §32
Mag Fea, a plain in the barony of Forth (Map), Co. Carlow (FM. i p. 5, note l) (Onom. ‘m. fea’), §51
Mag Feimin, (Mag Femin), a plain South of Cashel, comprising the barony of Iffa and Offa East (Map), Co. Tipperary (Tp. p. lxi (275), note 514) (Onom. ‘mag feimin’, ‘mag femin’, ‘femen’), §§51, 59
Mag Li, (Fir Lí) (Map – Fir Lí), a territory on the West of the River Bann, Bann River, in the modern barony of Coleraine, Coleraine (Map), Co. Derry (Ra. pp. 295-296, note g, p. 330, note a) (Onom. ‘m. lí’), §§51, 61
Mag Line = Líne, Moylinny, a plain extending from Lough Neagh, Lough Neagh, to near Carrickfergus, Carrickfergus, Co. Antrim; probably co-extensive with the deanery of Moylinny; the townland Moylinny, Moylinny, in the parish of Antrim, Antrim, Co. Antrim, preserves the name of this plain (Mis. p. 351, note o) (Ra. pp. 62-63) (Onom. ‘m. line’, ‘líne’), §§51, 61
Mag Liphi, a plain near the River Liffey in Leinster (FM. i pp. 454-455, note y) (Onom. ‘m. liphi’), §51
Mag Luirc, Moylurg, south of the Boyle River, in the barony of Boyle (Map), Co. Roscommon (FM. i p. 10, note n) (Onom. ‘m. luirc’), §§51, 61
Mag Mairge, possibly in Maircc Lagen, whose name is preserved in the barony of Slievemargy (Map) (FM. i p. 209, note t), Co. Laois (Onom. ‘maircc lagen’), §51
*Mag Rath, Moira, Moira, a town and parish in the barony of Iveagh Lower, Upper Half, Iveagh Lower, Upper Half (Map), Co. Down (FM. i p. 253, note m) (Onom. ‘m. rath’), §§4, 6, 7, etc.
Mide, (Map – Mide), Mide is nearly coextensive with the diocese of Meath (Map), which includes the greater part of Co.’s Meath, Westmeath and Offaly (Onom. ‘mide’), §§45, 51
Muirthemne (Map – Conaille Muirthemne), an ancient plain which extended from Drogheda, in Co. Meath, to Dundalk and Carlingford, in Co. Louth (FM. i p. 10, note u) (Onom. ‘muirthemne’), §51
Orbrige, Orrery, part of the barony of Orrery and Kilmore (Map) in Co. Cork (Lct. p. 64, note t) (Onom. ‘orbrige’), §40
Ossairge, (Osraighe), (Map – Osraighe), co-extensive with the diocese of Ossory (Map) (FM. iii pp. 20-21, note j) (Onom. ‘ossairge’), §45
*Ráith Mór, Rathmore, Rathmore, in Mag Line, about 2 miles North East of the town of Antrim, Antrim, in the parish of Donegore, Donegore Parish, barony of Antrim Upper, Antrim Upper (Map), Co. Antrim (FM. i p. 288, note d) (Ra. p. 69, note s, pp. 278-281) (Onom. ‘r. mór’), §61
*Ráith Murbuilcc, Maghera, Maghera, in the barony of Iveagh Upper, Lower Half, Iveagh Upper, Lower Half, (Map), Co. Down (Ra. p. 27, note c, p. 154) (Onom. ‘r. murbuilcc’, ‘murbolc’), §41
Roim, Rome (Onom. ‘roim’), §75
Ros Bearaigh, in Glenn Ercáin; not identified, §§12, 14, 33, etc.
*Ros Comáin, Roscommon, Co. Roscommon (Onom. ‘r. comáin’), §§42, 44
Ros Ercach, not identified, §21
*Ros Ercáin, Rasharkin, Rasharkin, a village and parish in the barony of Kilconway, Kilconway(Map), Co. Antrim (Ra. p. 90, note a) (FM. iv p. 1236 (590), note m) (Onom. ‘ros ercáin’), §§21, 35
Roth (Rath), see Mag Rath, §75
*Semne, Island Magee, Island Magee, a parish in the barony of Belfast Lower, Belfast Lower(Map), Co. Antrim (Ra. p. 270) (Onom. ‘semne’), §40
*Sgirig Chinn Ghlinne, possibly Skerrig, in the parish of Drumgoon, barony of Tullygarvey (Map), Co. Cavan, §31
Síl Eóghain, see Cenél Eóghain, §10
*Sinand, the River Shannon (FM. i p. 355, A.D. 751) (Onom. ‘sinand’), §§22, 45, 59
Siodhmhuine Glinne, not identified, §23
*Sliab Bladma, Slieve Bloom Mountains, Co. Tipperary (FM. i p. 461, note g) (Onom. ‘s. bladma’), §44
Sliab Breg, appears to have included all the hilly part of Co. Louth (FM. vi p. 1922, note o) (Onom. ‘s. breg’), §61
*Sliab Cúa, Knockmealdown Mountains, Co. Waterford (FM. i p. 48, note l) (Onom. ‘s. cúa’), §61
*Sliab Cuilind, Slieve Gullion, Slieve Gullion, barony of Orior Upper, Orior Upper (Map), Co. Armagh (FM. i p. 168, note p) (Onom. ‘s. cuilind’), §21
*Sliab Echtgi, Slieve Aughty Mountains, on the borders of Co. Galway and Co. Clare (FM. vi p. 2004, note w) (Onom. ‘s. echtgi’), §§44, 59
*Sliab Eiblinne, Slieve Felim Mountains in the North of Co. Limerick (ML. p. 24 (60), note k) (Onom. ‘s. eiblinne’), §40
Sliab Eidhnech, not identified, §§66, 67
*Sliab Fúait, Sliabh Fuaid, the highest mountain in the Fews, a mountain range near Newtownhamilton, in the barony of Fews Upper, Fews Upper (Map), Co. Armagh (FM. i p. 26, note g) (Onom. ‘s. fúait’), §§31, 40, 61, etc.
*Sliab Liag, Slieve League, Co. Donegal (Fg. p. 324) (Onom. ‘s. liag’), §27
Sliab Mic Sín, not identified (Onom. ‘s. mic sín’), §61
*Sliab Mis, Slemish Mountain, Slemish, in the parish of Racavan, Racavan Parish, barony of Antrim Lower, Antrim Lower (Map), Co. Antrim (Ra. p. 335. note i) (Onom. ‘s. mis’), §§21, 44, 77
Sliab na nEach, not identified, §36
Sliab Niadh, not identified, §40
Sliab Uillinne, not identified, §40
*Snám Dá Én, Swim Two Birds, on the River Shannon, between Clonmacnoise, Co. Offaly and Cloonburren, Co. Roscommon (FM. i p. 209, note w) (Onom. ‘s. dá én’), §22
*Suca, the River Suck, in Co. Mayo, Co. Roscommon and Co. Galway (FM. i p. 355, A.D. 751) (Onom. ‘suca’), §59
*Tailtiu, Teltown, a hill, townland and parish in the barony of Kells Upper (Map) in Co. Meath (FM. i p. 25, note d) (Onom. ‘tailtiu’), §45
*Tech Duinn, one of the three islands called the Bull Island, the Cow Island, the Calf Island, off Dursey Island, in the barony of Bear (Map), Co. Cork (Lct. p. 51, note o) (Onom. ‘t. duinn’), §67
Tech Mic Ninnedha, in Dál n-Araidhe; not identified, §35
*Tech Moling, St. Mullin’s, a townland, parish and (double) barony (Map), Co. Carlow (FM. ii p. 590, note h) (Onom. ‘t. moling’), §§40, 74, 77
Tír Bogaine = Cenél mBógaine, (Cenél mBógaine), (Map – Cenél mBogaine), now the barony of Banagh (Map), Co. Donegal (Tp. p. xxx (244), note 199) (Onom. ‘t. bogaine’, ‘t. bógaini’, ‘c. mbógaine’), §20
Tír Conaill = Cenél Conaill, Tyrconnell, (Cenél Conaill), (Map – Cenél Conaill), a segment of the Northern Uí Néill whose territory varied in extent over the centuries, normally equivalent to the diocese of Raphoe (Map), i.e. most of Tír Chonaill, Co. Donegal (Fy. p. 73, note a) (HDGP iv p. 109, s.n. Ceinéal Conaill) (Onom. ‘cenel conaill’, ‘c. conaill’, ‘t. conaill’), §§15, 20
Tír Fiachrach Mhuaidhe, the barony of Tirereagh (Map), Co. Sligo (Fy, pp. 2-3 (24-25), note c) (Onom. ‘t. fiachrach mhuaidhe’),§72
Tiupra na Gealta, not identified, §§84, 85
Toidiu, the watercourse in Moling’s monastery at Tech Moling (F. p. 153 (212) (The Birth of Moling and his Life, pp. 54-55 (58-59), p. 68 (72)) (Onom. ‘toidiu’), §40
Tráigh Ruire, not identified, §67
*Tuag Inbir, the estuary of the River Bann, Bann River, Co. Derry (FM. ii p. 572, note m) (Onom. ‘t. inbir’), §32
Uí Faeláin, (Uí Fáeláin), (Map – Uí Fáeláin), in North Co. Kildare (Lct. pp. 205-207, note a) (Onom. ‘úi faeláin’), §§8, 39, 55
Úi Ninnedha, in Dál n-Araidhe; not identified, §13
Ulaid, Ulster (Onom. ‘ulaid’), §§45, 51, 56, etc.