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From CODECS: Online Database and e-Resources for Celtic Studies
Geoffrey KeatingKeating (Geoffrey)
(c.1580–1644)
Céitinn (Seathrún)
Irish priest, historian and poet; author of Foras feasa ar Éirinn
See more John LaniganLanigan (John)
(1758–1828)
Irish priest and church historian.
See more Angharad LlwydLlwyd (Angharad)
(1769–1866)
Welsh antiquary.
See more John LynchLynch (John)
(c. 1599–1677)
Lucius (Gratianus)
Irish priest and scholar; author of Cambrensis eversus (1662), under the Latin pseudonym Gratianus Lucius.
See more Patrick Lynch [d. 1818]Lynch (Patrick) ... d. 1818
(1754/57–1818)
Ó Loingsigh (Pádraig) ... d. 1818
Irish schoolmaster, private tutor, author and editor.
See more Christianus Mac CarthaigMac Carthaig (Christianus)
(d. 1148 × 1156)
Third abbot of St James of Regensburg, believed to have been a Munsterman of the Mac Carthaig family of Desmond.
See more Díarmait Mac MurchadaMac Murchada (Díarmait)
(c.1110–1171)
Díarmait Mac Murchada, MacMurrough (Dermot), Díarmait na nGall
king of Leinster, son of Donnchad Mac Murchada (d. 1115)
See more Máel RuainMáel Ruain
(d. 792)
Founding bishop-abbot of the monastery of Tallaght (Ir. Tamlacht, Co. Dublin) and a pioneer and leader of a kind of monastic reform that inspired the emergence of the Céli Dé.
See more Máel RubaiMáel Rubai
(d. 722)
Máel Ruba, Sagart Ruadh
Abbot and founder of the monastery of Apor Crossan (Applecross, Scotland), commemorated as a saint in Irish and Scottish sources.
See more William Monck MasonMason (William Monck)
(1775–1859)
Irish historian
See more Thomas MessinghamMessingham (Thomas)
(c.1575–1638?)
Churchman and hagiographer who was born into an Old English family in Meath, studied at the Irish college at Douai and became a rector at the Irish college of Paris. He published a hagiographic collection entitled Florilegium insulae sanctorum (Paris, 1624).
See more Mo Chóemóc of LeamakevogeMo Chóemóc of Leamakevoge
(supp. fl. 6th/7th century)
Mo Chóemóc of Leigh
Mo Chóemóc (modern form: Mochaomhóg), pet form of Cóemán, is saint and reputed founder of Liath Mo Chóemóc (Leamakevoge, Leigh/Leighmore, Co. Tipperary).
See more Muirchertach mac NéillMuirchertach mac Néill
(d. 943)
Muirchertach na Cochall Craicinin, Muirchertach of the Leather Cloaks
King of Ailech from the Cenél nÉogain, son of Níall Glúndub mac Áeda.
See more Muru of FahanMuru of Fahan
(c.600–c.650)
Mura of Fahan, Muru mac Feradaig
founder and patron saint of Othain (now Fahan, Inishowen barony, Co. Donegal)
See more Máiréad Ní GhrádhaNí Ghrádha (Máiréad)
(1896–1971)
Irish author, playwright and broadcaster.
See more Níall Glúndub mac ÁedaNíall Glúndub mac Áeda
(d. 919)
High-king of Ireland from the Cenél nEógain branch of the northern Uí Néill.
See more Toirrdelbach Ó Briain [d. 1306]Ó Briain (Toirrdelbach) ... d. 1306
(d. 1306)
King of Thomond, son of Tadhg Ó Briain.
See more Dáibhí Ó BruadairÓ Bruadair (Dáibhí)
(fl. 1625–c.1698(?))
Ó Bruadair (Dáibhídh), Ó Bruadair (David)
Prolific Irish poet.
See more Eoghan Ó CaoimhÓ Caoimh (Eoghan)
(1656–1726)
Munster poet and scribe.
See more Muircheartach Ó CeallaighÓ Ceallaigh (Muircheartach)
(d. c.1407)
Bishop of Clonfert and archbishop of Tuam (since 1393/94).
See more Cú Choigcríche Ó CléirighÓ Cléirigh (Cú Choigcríche)
(d. in or after 1664)
Irish scholar, poet, historian and scribe; one of the so-named ‘Four Masters’.
See more Lughaidh Ó CléirighÓ Cléirigh (Lughaidh)
(c.1580–c.1630)
Irish historian and poet, known best as the author of a ‘biography’ of Aodh Ruadh Ó Domhnaill (Beatha Aodha Ruaidh Uí Dhomhnaill) and as one of the initiators of the ‘Contention of the Bards’; was one of the sons of Mac Con Ó Cléirigh and a cousin of Mícheál Ó Cléirigh.
See more Mícheál Ó CléirighÓ Cléirigh (Mícheál)
(d. 1643)
O'Clery (Michael)
Irish scholar, historian and scribe.
See more Peadar Ó DoirnínÓ Doirnín (Peadar)
(c.1700–1769)
Ulster poet and (hedge)schoolmaster.
See more Seaán Mór Ó DubhagáinÓ Dubhagáin (Seaán Mór)
(d. 1372)
Ó Dubhagáin (Seán Mór)
Irish poet and historian.
See more Tomás Ó GormáinÓ Gormáin (Tomás)
(1732–1809)
Ó Gormáin (Chevalier)
No short description available
See more Giolla na Naomh Ó hUidhrínÓ hUidhrín (Giolla na Naomh)
No short description available
See more Tadhg Dall Ó hUiginnÓ hUiginn (Tadhg Dall)
(fl. c.1550–c.1591)
Irish bardic poet and scholar, member of the Ó hUiginn family, son of Mathghamhain Ó hUiginn.
See more Tadhg Óg Ó hUiginnÓ hUiginn (Tadhg Óg)
(d. 1448)
Irish bardic poet of the Uí hUiginn of Connacht, son of poet Tadhg Ó hUiginn. His extant work reveals a wide range of elite patrons for whom he composed poems.
See more Mícheál mac Peadair Ó LongáinÓ Longáin (Mícheál mac Peadair)
(c.1693–c.1770)
Ó Longáin (Mícheál mac Peadar)
scribe from Limerick
See more Mícheál Óg Ó LongáinÓ Longáin (Mícheál Óg)
(1766–1837)
Irish scribe; son of Mícheál mac Peadair Ó Longáin
See more Muiris mac Torna Ó Maoil ChonaireÓ Maoil Chonaire (Muiris mac Torna)
(d. 1645)
Irish scholar, poet and scribe of the Ó Maoil Chonaire family. He is known to have made a small contribution to the Annals of the Four Masters.
See more Lorcán Ó MuireadhaighÓ Muireadhaigh (Lorcán)
(1883–1941)
Murray (Laurence Patrick), Murray (Laurence P.)
Irish Catholic priest (diocese of Armagh), historian, Irish language activist and collector; founder of the magazine An tUltach and co-founder of the County Louth Archaeological Society.
See more Énrí Ó MuirgheasaÓ Muirgheasa (Énrí)
(1874–1945)
Morris (Henry), Mac Róigh (Feargus)
Irish scholar and author, collector of oral traditions.
See more Toirdhealbhach Luineach Ó NéillÓ Néill (Toirdhealbhach Luineach)
(c.1530–1595)
O'Neill (Turlough Luineach), Ó Néill (Toirdhealbhach Luinneach)
Irish lord, son of Niall Connallach Ó Néill. His mother was Rose, sister to Maghnus Ó Domhnaill.
See more Toirdhealbhach mac Éinrí Ó NéillÓ Néill (Toirdhealbhach mac Éinrí)
(1562–1640)
Lord of the Fews in succession to his father Éinrí Ó Néill (Heny O’Neill, d. c.1565). His mother was Siobhán Mág Uidhir (Maguire), daughter of Cú Chonnacht Mág Uidhir.
See more Amhlaoibh Ó SúilleabháinÓ Súilleabháin (Amhlaoibh)
(1783–1838)
O'Sullivan (Humphrey)
Irish businessman, storyteller and schoolteacher, known for writing a diary, largely in Irish, between 1827 and 1835.
See more Brian O'LooneyO'Looney (Brian)
(d. 1901)
Ó Luanaigh (Brian), O'Looney (Bryan)
No short description available
See more Oliver PlunkettPlunkett (Oliver)
(1625–1681)
Pluincéid (Oilibhéar)
Archbishop of Armagh. He was ordained in 1669, after spending considerable time as a student and cleric in Rome (1647–1669). He fell victim to the crisis over an alleged ‘popish plot’. Having been found guilty of high treason against the Crown, he was violently executed at Tyburn on 11 July 1681. In the 20th century, he was both beautified (1920) and canonised (1975).
See more William ReevesReeves (William)
(1815–1892)
Irish antiquarian scholar; bishop of the Anglican see of Down, Connor and Dromore; keeper of the Armagh Public Library
See more Scandlán MórScandlán Mór
(d. 643 x 646)
King of Osraige, son of Colmán son of Bicne Cáech. He is best known in relation to the Synod of Druim Cett, at which time his father was king of Osraige and Scandlán, apparently a youth, was held hostage by Áed mac Ainmirech, overking from the Cenél Conaill branch of the Uí Néill. According to Adomnán, Colum Cille conferred a blessing on him and Scandlán would later take up the kingship of Osraige. He is sometimes given as a son of Cend Fáelad. Charles-Edwards suggests that a pedidgree may have been the source of confusion (Rawl. B 502: Cend Fáelad m. Colmain cuius filius Scandlain).
See more Sedulius ScottusSedulius Scottus
(fl. 9th century)
Irish scriptural scholar, teacher, grammarian and poet who made a career in Francia and became a leading intellectual figure at the court of Charles the Bald.
See more Henry SidneySidney (Henry)
(1529–1586)
Sir Henry Sidney, son of William Sidney, was lord deputy of Ireland (1565–71, 1575–78) and a prominent figure at the English court.
See more Siôn TudurSiôn Tudur
(d. 3 April 1602)
Welsh poet who was mostly active in North Wales.
See more Aquilla SmithSmith (Aquilla)
(d. 1890)
No short description available
See more Albert SuerbeerSuerbeer (Albert)
(d. 1272/73)
Also known as Albert the German, churchman from Cologne who became archbishop of Armagh, 1240 (cons.)-1246.
See more Tigernach of ClonesTigernach of Clones
(ob. 549)
Tigernach mac Coirpri
Irish saint associated with Clúain Éois (now Clones, Co. Monaghan), which lay in the kingdom of the Uí Chremthainn. His mother is said to have been Der Fraích, daughter of Eochaid (mac Crimthainn), king of the Uí Chremthainn, while his faiher is said to have been a Leinsterman named Coirpre (of the Uí Bairrche, according to some genealogical sources).
See more Richard TipperTipper (Richard)
(d. 1730)
Tuibear (Risteard), Tupper (Richard)
Irish scholar, scribe and antiquarian from Mitchelstown (Co. Dublin).
See more Gilla Mo Dutu Úa CaisideÚa Caiside (Gilla Mo Dutu)
(fl. c. 1147)
Gilla Mo Dutu Úa Caiside
Irish poet, credited as the author of Éri óg inis na náem and Ádam óenathair na ndóene (the metrical Banshenchas).
See more Echtgus Úa CúanáinÚa Cúanáin (Echtgus)
(d. 1161?)
Author of a Middle Irish metrical treatise on the real presence of Christ in the Eucharist. According to a rubric in the Brussels copy of the poem, he was of the community of Roscrea. It has been suggested, e.g. by Aidan Breen, that he is the same person as Ísác Úa Cúanáin, first known bishop of Roscrea, whose obit is recorded in AFM under the year 1161.
See more
(c.1580–1644)
Céitinn (Seathrún)
Irish priest, historian and poet; author of Foras feasa ar Éirinn
See more John LaniganLanigan (John)
(1758–1828)
Irish priest and church historian.
See more Angharad LlwydLlwyd (Angharad)
(1769–1866)
Welsh antiquary.
See more John LynchLynch (John)
(c. 1599–1677)
Lucius (Gratianus)
Irish priest and scholar; author of Cambrensis eversus (1662), under the Latin pseudonym Gratianus Lucius.
See more Patrick Lynch [d. 1818]Lynch (Patrick) ... d. 1818
(1754/57–1818)
Ó Loingsigh (Pádraig) ... d. 1818
Irish schoolmaster, private tutor, author and editor.
See more Christianus Mac CarthaigMac Carthaig (Christianus)
(d. 1148 × 1156)
Third abbot of St James of Regensburg, believed to have been a Munsterman of the Mac Carthaig family of Desmond.
See more Díarmait Mac MurchadaMac Murchada (Díarmait)
(c.1110–1171)
Díarmait Mac Murchada, MacMurrough (Dermot), Díarmait na nGall
king of Leinster, son of Donnchad Mac Murchada (d. 1115)
See more Máel RuainMáel Ruain
(d. 792)
Founding bishop-abbot of the monastery of Tallaght (Ir. Tamlacht, Co. Dublin) and a pioneer and leader of a kind of monastic reform that inspired the emergence of the Céli Dé.
See more Máel RubaiMáel Rubai
(d. 722)
Máel Ruba, Sagart Ruadh
Abbot and founder of the monastery of Apor Crossan (Applecross, Scotland), commemorated as a saint in Irish and Scottish sources.
See more William Monck MasonMason (William Monck)
(1775–1859)
Irish historian
See more Thomas MessinghamMessingham (Thomas)
(c.1575–1638?)
Churchman and hagiographer who was born into an Old English family in Meath, studied at the Irish college at Douai and became a rector at the Irish college of Paris. He published a hagiographic collection entitled Florilegium insulae sanctorum (Paris, 1624).
See more Mo Chóemóc of LeamakevogeMo Chóemóc of Leamakevoge
(supp. fl. 6th/7th century)
Mo Chóemóc of Leigh
Mo Chóemóc (modern form: Mochaomhóg), pet form of Cóemán, is saint and reputed founder of Liath Mo Chóemóc (Leamakevoge, Leigh/Leighmore, Co. Tipperary).
See more Muirchertach mac NéillMuirchertach mac Néill
(d. 943)
Muirchertach na Cochall Craicinin, Muirchertach of the Leather Cloaks
King of Ailech from the Cenél nÉogain, son of Níall Glúndub mac Áeda.
See more Muru of FahanMuru of Fahan
(c.600–c.650)
Mura of Fahan, Muru mac Feradaig
founder and patron saint of Othain (now Fahan, Inishowen barony, Co. Donegal)
See more Máiréad Ní GhrádhaNí Ghrádha (Máiréad)
(1896–1971)
Irish author, playwright and broadcaster.
See more Níall Glúndub mac ÁedaNíall Glúndub mac Áeda
(d. 919)
High-king of Ireland from the Cenél nEógain branch of the northern Uí Néill.
See more Toirrdelbach Ó Briain [d. 1306]Ó Briain (Toirrdelbach) ... d. 1306
(d. 1306)
King of Thomond, son of Tadhg Ó Briain.
See more Dáibhí Ó BruadairÓ Bruadair (Dáibhí)
(fl. 1625–c.1698(?))
Ó Bruadair (Dáibhídh), Ó Bruadair (David)
Prolific Irish poet.
See more Eoghan Ó CaoimhÓ Caoimh (Eoghan)
(1656–1726)
Munster poet and scribe.
See more Muircheartach Ó CeallaighÓ Ceallaigh (Muircheartach)
(d. c.1407)
Bishop of Clonfert and archbishop of Tuam (since 1393/94).
See more Cú Choigcríche Ó CléirighÓ Cléirigh (Cú Choigcríche)
(d. in or after 1664)
Irish scholar, poet, historian and scribe; one of the so-named ‘Four Masters’.
See more Lughaidh Ó CléirighÓ Cléirigh (Lughaidh)
(c.1580–c.1630)
Irish historian and poet, known best as the author of a ‘biography’ of Aodh Ruadh Ó Domhnaill (Beatha Aodha Ruaidh Uí Dhomhnaill) and as one of the initiators of the ‘Contention of the Bards’; was one of the sons of Mac Con Ó Cléirigh and a cousin of Mícheál Ó Cléirigh.
See more Mícheál Ó CléirighÓ Cléirigh (Mícheál)
(d. 1643)
O'Clery (Michael)
Irish scholar, historian and scribe.
See more Peadar Ó DoirnínÓ Doirnín (Peadar)
(c.1700–1769)
Ulster poet and (hedge)schoolmaster.
See more Seaán Mór Ó DubhagáinÓ Dubhagáin (Seaán Mór)
(d. 1372)
Ó Dubhagáin (Seán Mór)
Irish poet and historian.
See more Tomás Ó GormáinÓ Gormáin (Tomás)
(1732–1809)
Ó Gormáin (Chevalier)
No short description available
See more Giolla na Naomh Ó hUidhrínÓ hUidhrín (Giolla na Naomh)
No short description available
See more Tadhg Dall Ó hUiginnÓ hUiginn (Tadhg Dall)
(fl. c.1550–c.1591)
Irish bardic poet and scholar, member of the Ó hUiginn family, son of Mathghamhain Ó hUiginn.
See more Tadhg Óg Ó hUiginnÓ hUiginn (Tadhg Óg)
(d. 1448)
Irish bardic poet of the Uí hUiginn of Connacht, son of poet Tadhg Ó hUiginn. His extant work reveals a wide range of elite patrons for whom he composed poems.
See more Mícheál mac Peadair Ó LongáinÓ Longáin (Mícheál mac Peadair)
(c.1693–c.1770)
Ó Longáin (Mícheál mac Peadar)
scribe from Limerick
See more Mícheál Óg Ó LongáinÓ Longáin (Mícheál Óg)
(1766–1837)
Irish scribe; son of Mícheál mac Peadair Ó Longáin
See more Muiris mac Torna Ó Maoil ChonaireÓ Maoil Chonaire (Muiris mac Torna)
(d. 1645)
Irish scholar, poet and scribe of the Ó Maoil Chonaire family. He is known to have made a small contribution to the Annals of the Four Masters.
See more Lorcán Ó MuireadhaighÓ Muireadhaigh (Lorcán)
(1883–1941)
Murray (Laurence Patrick), Murray (Laurence P.)
Irish Catholic priest (diocese of Armagh), historian, Irish language activist and collector; founder of the magazine An tUltach and co-founder of the County Louth Archaeological Society.
See more Énrí Ó MuirgheasaÓ Muirgheasa (Énrí)
(1874–1945)
Morris (Henry), Mac Róigh (Feargus)
Irish scholar and author, collector of oral traditions.
See more Toirdhealbhach Luineach Ó NéillÓ Néill (Toirdhealbhach Luineach)
(c.1530–1595)
O'Neill (Turlough Luineach), Ó Néill (Toirdhealbhach Luinneach)
Irish lord, son of Niall Connallach Ó Néill. His mother was Rose, sister to Maghnus Ó Domhnaill.
See more Toirdhealbhach mac Éinrí Ó NéillÓ Néill (Toirdhealbhach mac Éinrí)
(1562–1640)
Lord of the Fews in succession to his father Éinrí Ó Néill (Heny O’Neill, d. c.1565). His mother was Siobhán Mág Uidhir (Maguire), daughter of Cú Chonnacht Mág Uidhir.
See more Amhlaoibh Ó SúilleabháinÓ Súilleabháin (Amhlaoibh)
(1783–1838)
O'Sullivan (Humphrey)
Irish businessman, storyteller and schoolteacher, known for writing a diary, largely in Irish, between 1827 and 1835.
See more Brian O'LooneyO'Looney (Brian)
(d. 1901)
Ó Luanaigh (Brian), O'Looney (Bryan)
No short description available
See more Oliver PlunkettPlunkett (Oliver)
(1625–1681)
Pluincéid (Oilibhéar)
Archbishop of Armagh. He was ordained in 1669, after spending considerable time as a student and cleric in Rome (1647–1669). He fell victim to the crisis over an alleged ‘popish plot’. Having been found guilty of high treason against the Crown, he was violently executed at Tyburn on 11 July 1681. In the 20th century, he was both beautified (1920) and canonised (1975).
See more William ReevesReeves (William)
(1815–1892)
Irish antiquarian scholar; bishop of the Anglican see of Down, Connor and Dromore; keeper of the Armagh Public Library
See more Scandlán MórScandlán Mór
(d. 643 x 646)
King of Osraige, son of Colmán son of Bicne Cáech. He is best known in relation to the Synod of Druim Cett, at which time his father was king of Osraige and Scandlán, apparently a youth, was held hostage by Áed mac Ainmirech, overking from the Cenél Conaill branch of the Uí Néill. According to Adomnán, Colum Cille conferred a blessing on him and Scandlán would later take up the kingship of Osraige. He is sometimes given as a son of Cend Fáelad. Charles-Edwards suggests that a pedidgree may have been the source of confusion (Rawl. B 502: Cend Fáelad m. Colmain cuius filius Scandlain).
See more Sedulius ScottusSedulius Scottus
(fl. 9th century)
Irish scriptural scholar, teacher, grammarian and poet who made a career in Francia and became a leading intellectual figure at the court of Charles the Bald.
See more Henry SidneySidney (Henry)
(1529–1586)
Sir Henry Sidney, son of William Sidney, was lord deputy of Ireland (1565–71, 1575–78) and a prominent figure at the English court.
See more Siôn TudurSiôn Tudur
(d. 3 April 1602)
Welsh poet who was mostly active in North Wales.
See more Aquilla SmithSmith (Aquilla)
(d. 1890)
No short description available
See more Albert SuerbeerSuerbeer (Albert)
(d. 1272/73)
Also known as Albert the German, churchman from Cologne who became archbishop of Armagh, 1240 (cons.)-1246.
See more Tigernach of ClonesTigernach of Clones
(ob. 549)
Tigernach mac Coirpri
Irish saint associated with Clúain Éois (now Clones, Co. Monaghan), which lay in the kingdom of the Uí Chremthainn. His mother is said to have been Der Fraích, daughter of Eochaid (mac Crimthainn), king of the Uí Chremthainn, while his faiher is said to have been a Leinsterman named Coirpre (of the Uí Bairrche, according to some genealogical sources).
See more Richard TipperTipper (Richard)
(d. 1730)
Tuibear (Risteard), Tupper (Richard)
Irish scholar, scribe and antiquarian from Mitchelstown (Co. Dublin).
See more Gilla Mo Dutu Úa CaisideÚa Caiside (Gilla Mo Dutu)
(fl. c. 1147)
Gilla Mo Dutu Úa Caiside
Irish poet, credited as the author of Éri óg inis na náem and Ádam óenathair na ndóene (the metrical Banshenchas).
See more Echtgus Úa CúanáinÚa Cúanáin (Echtgus)
(d. 1161?)
Author of a Middle Irish metrical treatise on the real presence of Christ in the Eucharist. According to a rubric in the Brussels copy of the poem, he was of the community of Roscrea. It has been suggested, e.g. by Aidan Breen, that he is the same person as Ísác Úa Cúanáin, first known bishop of Roscrea, whose obit is recorded in AFM under the year 1161.
See more
