Mac Aodhagáin (English: Egan or Keegan), is an Irish Gaelic clan of Brehons who were hereditary lawyers - firstly to the Ó Conchobhair Kings of Connacht, and later to the Burkes of Clanricarde.
The earliest surviving Irish law manuscript, In Senchas Már, was written prior to 1350 at a school (patronised by the Mac Aodhagáin) at Duniry, near Loughrea. Other branches of the clann maintained schools at Park, outside Tuam, and at Ballymacegan in Co. Tipperary. The work known as Leabhar Breac was produced by one of their students, while Dubhaltach MacFhirbhisigh may have studied at Ballymacegan under Flann Mac Aodhagáin up to the year 1643.
The surname has been Anglicised in a variety of ways, including as Mac Egan, Egan, Eagan, Keegan, or Keigan, McKiegan, and McKagan.
Muirchertach Mac Aodhagáin | |_______________________________________________ | | | | | | Saérbrethach Donnchad Mór Mael Ísu | | | | | | Mac Aodhagáin Mac Aodhagáin of Connacht, Magnus of Munster Westmeath and Leinster | | Aed | | Domnall | | Aed Gilla Ísa Muirchertach Mac Aodhagáin | |_______________________________________________ | | | | | | Saérbrethach Donnchad Mór Mael Ísu | |_____________________________________________________________ | | | | | | Gilla na Naem Fland Fingin | | | |__________________ | | | | Saérbrethach Fingin | | | | Saérbrethach Dond Sléibhe | | | | Mael Isu Ruadh, Saerdalach | | d. 1317. Fland Gilla na Naem | | | |_________________________ Tomás | | | | | | | | Conchobar Cairbre Fiachra Tomás Aimréid | | |_______________________________________________________________________ | | | | | Conchobar | | | | | Gilla na Naem, d. 1399. Aed, d. 1359. Tadcc Donall, d. 1413. | | | Cairbre |______________________________________________ | | | | | Conchobar | | | | | Gilla na Naem, d. 1443. Aed Domnall Donnchad _____________|_____________________________ | | | | | _________________| ______________________|________________ | | | | | | | | | | Sean Tadcc Baethgalach | | | | | | | | | Gilla na Naem Cairbre Aed Fergal Conchobar Muirchertach Eogan | |_________ | | | | | | | | | ___________________________|_______________________ | | Domnall Donnchad Domnall, d. 1529. | | | | | Domnall Tacc, | & William | | | | | | Aed Clerech, | Brian An Cosnamach Conchobar Muircheartach Gilla na Naem | William. An Cosnamaid | | __________| | | | Cairbre | | | Cairbre Baethgalach |_____________________________________ | | | | | | | | William Flann Donnchad Cairbre Óge | d. 1643 d. 1602 d. 1601 | Seán, fl. 1644. Muirchertach Mac Aodhagáin | |_______________________________________________ | | | | | | Saérbrethach Donnchad Mór Mael Ísu | | | | | | Mac Aodhagáin | Magnus of Munster | | ________________________|_________ | | | | | | Baethgalach Diarmait Donnchad Claen | issue issue
Mac Aodhagáin of Cineil Fiachrach and Offaly
Muirchertach Mac Aodhagáin | |_______________________________________________ | | | | | | Saérbrethach Donnchad Mór Mael Ísu | | | | | | Mac Aodhagáin | Magnus of Munster | | ________________________|_________ | | | | | | Baethgalach Diarmait Donnchad Claen | issue issue Muirchertach Mac Aodhagáin | |_______________________________________________ | | | | | | Saérbrethach Donnchad Mór Mael Ísu | | | | | | Mac Aodhagáin | Magnus of Munster | | ________________________|______________ | | | | | | Baethgalach Diarmait Donnchad Claen (see Lower Connacht) | |_________________________________________________________________________________ | | | | Sairbrethach In Cosnamaid | | | | Mael Isa Dond, d. 1330. Crimthann | | _______________________|________________________________________________________________ | | | | | | | Aed | | | | | | Sairbrethach Caech, d. 1354. Roiberd Muirchertach Buidhe Sean Donnchad Tomas Tuathach | | | |_________________________ | |____________________ | | Eogan | | | | | | Solam Saerdalach Tomaltach Carrach Baethgalach | | | | ___________________| | | | | Eogan | | | | | Donnchad Dub Rioberd | | | | Eogan | | |________________________________ | | | | | | | | | | | | Brian, d. 1473. Sean Toinn Buidhe | | | | | | | | | | | | Aed, Roiberd Solam Buidhe | | Magnus. | |______________________________________________________________________________________________________________________ | | | | | | | | | | | | | | | | | | | | | Brian Carrach Fergal Aed Saerdalach Eogan Gilla na Naem Domnall Clerech Tadcc Diarmait Buidhe | | | | | | | | | | | Sean, Conchobar, Uilliam, Tadcc, | Uilliam, Saerdalach, Tadcc, Sean. | Saerdalach, Muirchertach C., Mael-Ruin, | Cormac G., An Cosnamaid, d. 1529. Donnchad, | Conchobar. Cairbre. | na-Tet | an brathair |____________________________________________________________________________ | | | | Airechtach Mael Isu | | | |____________________ Gilla na Naem, d. 1447. | | | | | |________________________________________________________________ Saerbrethach An Cosnamaid Caech | | | | | | | | | | | | | | Tadcc, d.1487. An Cosnmaid Baethgalach Gilla na Naem Oc Fergal Conchobar, Caibre, & Aed. William, & Tadcc.
Mac Aodhagáin of Breifine and Teathba
Muirchertach Mac Aodhagáin | |_______________________________________________ | | | | | | Saérbrethach Donnchad Mór Mael Ísu | | | | | | Mac Aodhagáin | Magnus of Munster | | ________________________|_________ | | | | | | Baethgalach Diarmait Donnchad Claen of Lower Connacht issue | _________________________________| | | | | Luccas Mael Simon (see Mac Aodhagáin of Clanricarde) | |_______________________________________________ | | | | Tadcc Bacach Brian | | |_______________________________ |_____________________________________________ | | | | | | | | | | | | Brian, Sean, Cormac Roiberd Magnus Solam d. 1390. d. 1390. | | _______________________________________________| | | | | Maine | | | Fergal Cormac Sean Sagart | | | | _______|____ | | | | Muirchertach, d. 1409. | | | | Cairbre Cathal Ruad | | |_____________________________________________ | | | | | | | | | | Eogan Magnus Donnchad Clerech Feidlimid Emann Muirchertach Mac Aodhagáin | |_______________________________________________ | | | | | | Saérbrethach Donnchad Mór Mael Ísu | | | | | | Mac Aodhagáin | Magnus of Munster | | ________________________|_________ | | | | | | Baethgalach Diarmait Donnchad Claen of Lower Connacht issue | _________________________________| | | | | Simon Luccas Mael | |____________________________________________________________________________________________________________________ | | | | | | Sairbrethach Mael Isa Saerdalach | | |_________________________________________________ |_______________________________ | | | | | | | | | | | | Fland Solam In Decanach Aed Raigne Donnchad | | | | | | | _______________________| | | |____________ | | | | | Diarmait Fland | | Raigne | | | | | | | | Diarmait William Tadcc Aed Tomaltach | | | | | Domnall | | | | | Diarmait Donnchad Gilla na Naem | | | | | | | Eogan An Cosnamaid | | | | | Conchobar Finguine | | Conchobar Ruad, d. 1438. | |_________________________________________________________________ | | | | | | | | | | | | | | Domnall Glas Tadcc William Eogan Gilla na Naem Aed Sean, d. 1487. | | Domnall Oc | | Tadcc | | Tadcc Oc | | Baethgalach
Chandler Egan, golferChris Egan (disambiguation), several peopleDaniel Egan, former mayor of Sydney, AustraliaDennis Egan (born 1947), Alaska politicianEddie Egan (1930–1995), New York police detective depicted in The French ConnectionEdward Egan, Roman Catholic CardinalFelim Egan, painterGeorge W. Egan, South Dakota politicianGerard Egan, psychologistGreg Egan, authorJames Egan (disambiguation), several people called James or JimJennifer Egan, authorJoe Egan (disambiguation), several peopleJohn Egan (disambiguation), several peopleKenny Egan, boxerJohnny Egan, basketball player and coachJoseph F. Egan (c.1917–1964), New York politicianJoseph V. Egan, New Jersey politicianKian Egan, singer, part of the band WestlifeKieran Egan (educationist), English educatorKieran Egan (politician), Irish politicianMark Egan, jazz musicianMatthew Egan, Australian Rules footballerMaureen Egan, American writer and director of music videos and filmsMaurice Francis Egan, American writer and diplomatMichael Egan (disambiguation), several peoplePhilip Egan (born 1955), Bishop of PortsmouthPierce Egan, journalistRichard Egan (disambiguation), several peopleRoma Egan, ballet dancerSam Egan, journalist and producerSeamus Egan, musicianSean Egan, computer software developerSusan Egan, American actressTed Egan, Australian folk musician and Administrator of the Northern TerritoryThomas C. Egan (1894–1961), US federal judgeTimothy Egan, writerWalter Egan (born 1948), American musicianWalter Egan (golfer), golferWilliam Egan (disambiguation), several peopleAndrew Keegan (born 1979), American actorBetty Ann Keegan (1920-1974), American politicianBob Keegan (1920–2001), American baseballerChad Keegan (born 1979), South African cricketerClaire Keegan (born 1968), Irish writerColm Keegan, (born 1989), Singer in Celtic ThunderGed Keegan (born 1955), English soccer playerDame Geraldine Keegan, Northern Ireland educatorJake Keegan (born 1991), American soccer playerSir John Keegan (1934–2012), English military historian and authorJohn C. Keegan (born 1952), American judge, retired military officer, and Arizona politicianKevin Keegan (born 1951), English soccer manager and former playerLisa Graham Keegan, American education reform advocate, Arizona politician and political activistMarina Keegan (1989-2012), American authorMichelle Keegan (born 1987), British actressPaul Keegan (disambiguation), multiple people, including:Paul Keegan (footballer, born 1972) (born 1972), Irish soccer playerPaul Keegan (footballer, born 1984) (born 1984), Irish soccer playerRose Keegan (born 1965), British actressRupert Keegan (born 1955), English racing driverScarlett Keegan (born 1984), American model and actressVictor Keegan (born 1940), British journalist and author focusing on economics and technology issues