(from www.kinsella.org)

Genealogy was extremely important to all the free classes in ancient Ireland because social standing was determined by hereditary right.

In many Irish geneaologies the earliest generations, which include biblical names and the names of the Gaels (the name the Irish give to the first Celtic invaders of Ireland) that wandered all over the Mediterranean Sea are purely the invention of enthusiastic monks that were trying to make Irish genealogy agree with biblical information.

The story of the landing in Ireland around 1800 BC as recorded in the "Book of Invasions" is considered mythology, similar to that of the Greek and Roman ancestor myths.

The generations following the Milesians are likewise considered to be mythological, although it is conceded that the activities of these people in some cases may refer to actual historical events.

All the leading families in Ireland trace themselves back to one of the four Milesian chieftains that supposedly were leaders of the first Celtic invasion of Ireland. Douglas Hyde in his, "A Literary History of Ireland" concludes that the long list of descendants from these chieftains should be discarded until we reach names of people that lived in the third or fourth century A.D. It is at this time that most of the noble genealogies converge. He believes that genealogy lists after this point in time should be considered to be authentic.

Hyde goes on to state that there is one family line that appears to be much older than the rest. He says that the most ancient of all Irish pedigrees is the line of Leinster Kings which goes back to around 300 B.C., at which point it joins the "artificial" list of names that leads back to the Milesians.

Here is an example showing the Kinsella (Ui Cheinnselaig/Cinnsealaigh) genealogy. Just for reference, the area of Hy Kinsella was composed of numerous smaller states, called "tuaths",each of which had their own chieftain. The king of Hy Kinsella governed over all these minor chieftains. The families eligible for kingship of Hy Kinsella were the MacMurroughs, Cavanaughs, and Kinsellas (families that branched off from Dermot MacMurrough on the family tree). The ruler of Hy Kinsella, if he were powerful enough, could become ruler of the province of Leinster. The ruler of Leinster, in turn, could become King of all Ireland, called "Ard Ri". This was achieved by Dermot mac Mael na mBo.

  1. Adam: his wife was Eve
  2. Seth: son of
  3. Enos: son of
  4. Cainan: son of
  5. Mahalaleel: son of
  6. Jared: son of
  7. Enoch: son of
  8. Methuselah: son of
  9. Lamech: son of
  10. Noah: son of
  11. Japhet: eldest son of Noah. He had 15 sons, amongst whom he divided Europe, and the part of Asia his father had allotted to him.
  12. Magog: his son, from whom descended the Parthians, Gadelians, Amazonians, etc; also Bartholinus, the first planter of Ireland, about three hundred years after the flood
  13. Baoth: one of the sons of Magog, to whom Scythia came as his lot upon the division of the earth by Noah, and subsequently by Japhet, of his part thereof among his sons
  14. Phoeniusa (Fenius) Farsaidh:inventor of Letters.
  15. Niul: after his father's return to Scythia, continue d some time at Aeothania, teaching the languages and other laudable sciences, until, upon report of his great learning, he was invited into Egypt by Pharaoh, the king who gave him the land of Campuss Eyrunt, near the Red Sea, to inhabit, and heal so gave him his daughter Scota in marriage, from whom their posterity are ever since called the Scots. It was this Niulus who employed Gaodhal (Gael) son of Eighor, a learned and skillful man, to compose, or rather refine, the language called Bearla Tobbai, which was common to the posterity of Niulus, and was afterwards called "Gaodh-ilg" from the said Gaodhal, who composed and improved it, and for his sake also Niulus called his eldest son "Gaodhal"
  16. Gaodhal: the son of Niulus, was the ancestor of the Clan na Gael; that is, the children or descendants of Gaodhal. In his youth this Gaodhal was stung in the neck by a serpent, and was immediately brought to Moses, who, by laying the miraculous rod on the wounded place, cured him, and, in addition to this cure, he obtained a further blessing, which we enjoy to the present day--namely, that no venomous beast can live at any time where his posterity should inhabit, which privilege is verified in Candia, Getulea, and Ireland.
  17. Asruth: his son, continued in Egypt, and governed his colony in peace during his life
  18. Sruth: his son, soon after his father's death, was set upon by the Egyptians, actuated by their former animosities towards his predecessors, for having taken part with the Israelites against them, and which animosities had, until then, lain raked up in the embers, but which now broke out into a flame, to that degree that, after many battles and conflicts, wherein most of his colony lost their lives, Sruth was forced, with the few remaining, to depart the country, and after many traverses at sea, arrived at the Island of Crete, or Candia, where he died.
  19. Heber Scutt: after his father's death, and a year's stay at Crete, departed thence, leaving some of his people to inherit the island, and where some of their posterity likely remain, as the islands harbor no venomous serpents ever since. He and his people soon after arrived in Scythia, where his cousins, the posterity of Nenuallus (eldest son of Farsa), refusing to allot a place of habitation for him and his colony, they fought many battles, wherein Heber, being always the victor, at length forced the sovereignty from the reigning king, and settling himself and his colony in Scythia, they continued there for four generations. Heber Scott was afterwards slain in battle, by Noemus, the son of the former king.
  20. Beouman: son of
  21. Oghaman: son of
  22. Tait: were kings of Scythia, but in constant war with the natives, so that after Tait's death, his son...
  23. Agnan: and his followers betook themselves to sea, wandering and coasting upon the Caspian for several years, in which time he died
  24. Lamhfionn: and his fleet remained at sea or some time after his father's death, resting and refreshing themselves upon such islands as they met with. It was then that Cachear, their magician or Druid, foretold that there would be no end to their wanderings and travels, until they would arrive in the western island of Europe called Ireland, which was the place destined for their future and final abode, and that no only they but their posterity after three hundred years should arrive there. After many traverses of fortune at sea this little fleet arrived at last with their leader at Gothia or Gethulia, more recently Libya, where Carthage was afterwards built, and soon afterwards Lamhfoin died there.
  25. Heber Glunfionn: his son, was born in Getulia where he also died. His posterity continued there to the eighth generation, and were kings or rulers for one hundred and fifty years and upwards.
  26. Agnan Fionn: son of
  27. Febric Glas: son of
  28. Nenuall: son of
  29. Nuadhad: son of
  30. Alladh: son of
  31. Arcadh: son of
  32. Deagh: son of
  33. Brath: was born in Gothia. Remembering the Druid predictions, an d his people having increased considerably during their abode in Getulia, he departed thence with a numerous fleet, to seek out the country destined for their final settlement by the prophecy of Cachear. After some time he landed on the coast of Spain, and by the strong hand settled himself and his colony in Galicia, in the north of that country.
  34. Breoghan (Brigus): a quo the "Brigantes": was king of Galicia, Andalusia, Murcia, Castile, and Portugal, all of which he conquered. He built Breoghans Towe r, or Brigantia, in Galicia, and the City of Braganza, in Portugal, called after himself. The kingdom of Castile was then called Brigia after him also.
  35. Bile: was king of those countries after his father's death, and was succeeded by his son Milesius (Galamh). This Bile had a brother named Ithe.

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    The following comprises the foundation myths of the Irish. There may be some truth in them but their validity is in question

  36. Milesius of Spain:From whence all the nobility of Ireland is descended.
  37. Heremon: his son.

    He had the following sons:

    1. Muimne: This Monarch was buried at Croaghan, situated near Elphin, in Co.Roscommon. In the early ages, Croaghan became the capital of Connaught and a residence of the ancient King of Ireland; and at Croaghan the states of Connaught held conventions, to make laws and inaugurate their Kings. There, too, about a century before the Christian era, the Monarch Eochy Feidlioch erected a royal residence and a great rath, called Rath Cruachan, after his queen, Cruachan Croidheirg, mother of Maeve (famous from Red Branch stories)
    2. Luigne
    3. Laighean
    4. Trial or Eurialus (Irial Faidh). He asserted his rights to his father's crown, and succeeded in gaining it in a pitched battle
  38. Irial Faidh (a prophet): his son, was the 10th Monarch of Ireland; died 1670 BC. This was a very learned king; could foretell things to come; and caused much of the country to be cleared of the ancient forest. He likewise built seven royal palaces(Rath Ciombaoigh, Rath Coincheada, Rath Mothuig, Rath Buirioch, Rath Luachat, Rath Croicne, and Rath Boachoill). He won four remarkable battles over his enemies: Ard Inmath, at Teabtha, where Stirne, the son of Dubh, son of Fomhar, was slain; the second battle was at Teanmhuighe, against the Fomhoraice, where Eichtghe, their leader, was slain; the third was the battle of Loch Muighe, where Lugrot, the son of Moghfeibhis, was slain; and the fourth was the battle of Cuill Martho, where the four sons of Heber were defeated. Irial died in the second year after this battle, having reigned 10 years, and was buried at Magh Muagh. During his reign a great part of the country was laid open, and freed from woods.
  39. Eithrial: his son; was the 11th Monarch; reigned 20 years. This prince was distinguished for his great learning; he wrote, with his own hand, the history and travels of the Badelians; nor was he less remarkable for his valor and military accomplishments. He was slain by Conmaol, the son of Heber Fionn, at the battle of Soirrean, in Leinster (1650 BC) leaving only one son
  40. Foll-Aich: his son; was kept out of the Monarchy by Conmaol, the slayer of his father, who usurped his place.
  41. Tigernmas: his son; was the 13th Monarch, and reigned 50 years.
  42. Enboath: his so n. It was in this prince's lifetime that the Kingdom was divided in two parts by a line drawn from Drogheda to Limerick.
  43. Smiomghall: his son; in his lifetime the Picts in Scotland were forced to abide by their oath, and pay homage to the Irish Monarch; seven large woods were also cut down.
  44. Fiacha Labhrainn: his son; was the 18th Monarch; reigned 24 years, slew Eochaidh Faobharglas, of the line of Heber, at the battle of Carman. During his reign all the inhabitants of Scotland were brought in subjection to the Irish Monarchy, and the conquest was secured by his son the 20th Monarch. Fiacha at length (1448 BC) fell in the battle of Bealgadain, by the hands of Eochaidh Mumho, the son of Moefeibhis, of the race of Heber Fionn. He was called Labhrainn because during his reign the stream of Tubher Labhrainn began to flow.
  45. Aongus Olmucach: his son; was the 20th Monarch. He was named for having a breed of swine of a much larger size than any in Ireland, the words "oll" and "mucca" signifying "great swine." He was a valiant and war-like prince, and fought the following battles: the battle of Claire, the battle of Moigen Cgiath, in Connaught; the battle of Glaise Fraochain, where Frachain Faiah was killed; and in his reign the Picts again refused to pay the tribute imposed on them 250 years before, by Heremon, but this Monarch went with a strong army into Alba and in thirty pitched battles overcame them and forced them to pay the required tribute. Aongus was at length slain by Eana, in the battle of Carman, 1409 BC
  46. Main: his son; was kept out of he Monarchy by Eadna, of the line of Heber Fionn. In his time silver shields were given as rewards for bravery to the Irish militia.
  47. Rogheachach: his son; was the 22nd Monarch for 25 years; slain 1357 BC by Sedne(Seadhna) of the Line of Ir at Rath Cuchain. Silver shields were made, and four-horse chariots were first used in Ireland during his reign.
  48. Dein: his son; was kept out of the Monarchy by his father's slayer, and his son. In his time gentlemen and nobleman first wore gold chains round their necks, as a sign of their birth; and golden helmets were given to brave soldiers.
  49. Siorna "Saoghalach" (long life): his son; was the 34th Monarch who reigned 21 years; he was slain (1030 BC) at Aillin, by Rotheachta, of the Line of Heber Fionn, who usurped the Monarchy, thereby excluding Siorna's son, Olioll Aolcheoin, from the throne.
  50. Olioll Aolcheoin: son of Siorna Saoghalach.
  51. Gialchadh: his son; was the 37th Monarch for 9 years; killed by Art Imleach, of the Line of Heber Fionn, at Moighe Muadh (1013 BC)
  52. Nuadhas Fionnfail: his son; was the 39th Monarch for 21 years; slain by the son of Art Imleach, Breasrioghacta (961 BC), his successor.
  53. Aedan Glas: his son. In his time the coast was infested with pirates; and there occurred a dreadful plague (Apthach) which swept away most of the inhabitants.
  54. Simeon Breac: his son; was the 44th Monarch; he inhumanly caused his predecessor to be torn asunder; but, after a reign of 6 years, he met with a like death (903 BC),by order of Duach Fionn, son to the murdered king
  55. Muredach Bolgach: his son; was the 46th Monarch for 4 years; killed by Eadhna Dearg (son of Duach Fionn) in 892 BC. Had following sons:
    1. Duach Teamhrach, who had following sons:
      1. Eochaidh Framhuine, 51st Monarch of Ireland
      2. Conang Beag-eaglach, 53rd Monarch of Ireland
    2. Riacha Tolgrach, who is described below
  56. Riacha (Feachus?) Tolgrach: son of Muredach; was the 55th Monarch for 5 years. His life was ended by the sword of Oilioll Fionn of the line of Heber Fionn, 795 BC
  57. Duach Ladhrach: his son; was the 59th Monarch for 10 years. He was distinguished by the name Duach Lagrach by reason of his being so strict and hasty in the execution of justice; that he was impatient and would not admit of a moment's delay until the criminal was seized and tried for the offense; the word, "Lagrach," means speed and suddenness. He was killed by Lughaidh Laighe, son of Oilioll Fionn, 737 BC
  58. Eochaidh Buadhach: his son; was kept out of the Monarchy by his father's slayer. In his time the kingdom was twice visited with a plague
  59. Ugaine More: his son. This Ugaine (Hugony) the Great was the 66th Monarch of Ireland for 40 years.
  60. Laeghaire Lorc, the 68thMonarch of Ireland: son of Ugaine Mor: began to reign, 593 BC.
  61. Olioll Aine: his son. Slain by Cobhthach Caolmbreag, lest he should disturb his reign.
  62. Labhradh Longseach:his son. (This is around 250 B.C.)
  63. Olioll Bracan: his son.
  64. Aeneas Ollamh: his son; the 73rd Monarch for 18 years. He fell by the sword of Iaran Gleofathach
  65. Breassal: his son.
  66. Fergus Fortamhail: his son; the 80th Monarch. He was known by that name because he had great strength of body, and brave beyond any of his time. He reigned 12 years and was slain 384 BC in battle by Aongus Tuirmeach
  67. Felim Fortuin: his son.
  68. Crimthann Coscrach: his son; the 85th Monarch for 7 years. He was distinguished by that name because he behaved with such bravery at the head of his army, that he was victorious in every battle he fought; "Cosgrach" signifies "slaughter" and "bloodshed" He was slain by Rogerus, the son of Sithrig.
  69. Mogh-Art: his son.
  70. Art: his son.
  71. Allod (Olioll): h is son.
  72. Nuadh Falaid: his son.
  73. Fearach Foghlas: his son.
  74. Olioll Glas: his son.
  75. Fiacha Fobrug: his son.
  76. Breassal Breac: his son. Had following sons between whom he divided his country:
    1. Lughaidh, who is described below. He was the ancestor of the Kings, nobility, and gentry of Leinster. He inherited all the territories on the north side of the river Barrow, from Wicklow to Drogheda
    2. Conla. He was the ancestor of the Kings, nobility, and gentry of Ossory. He inherited the south part, from the Barrow to the sea
  77. Lughaidh (Luy): son of Breassal Breac
  78. Sedna: his son; built the royal city of Rath Alinne (now Allen in Co.Kildare)
  79. Nuadhas Neacht (Neass): his son; the 96th Monarch. The royal city of Naas is named after him. He was killed by the sword of Conaire, the son of Eidersgoil. Had the following sons:
    1. Fergus Fairge, who is described below
    2. Baoisgne, who was the father of Cubhall (Coole) who was the father of Fionn, commonly called "Finn MacCoole", the general in the 3rd century of the ancient Irish Militia known as the Fianna Eirionn, of "Fenians of Ireland"
  80. Fergus Fairge: his son.
  81. Ros: son of Fergus Fairge
  82. Fionn File (a poet): his son.
  83. Conchobhar Abhraoidhruaidh: his son; the 99th Monarch of Ireland for 1 year. His name came from the fact that the hair of his eyebrows was red; the word "abrudhruadh" means "red eyebrows".
  84. Mogh Corb: his son.

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    About the time of Mogh Corb's birth, the common people (Firbolgs perhaps) rose up and overthrew their leaders (Milesian nobles perhaps). The leaders were mostly killed but some few made it to Scotland where they stayed for a number of years. Eventually they returned, supposedly after being asked back by the common people, because their land was now in chaos.

    Tuathal Teachtmhar first collects Boruma Tribute from king of Leinster, Eochaidh Aincean, for the treatment Eochaidh metes out to Tuathal's daughters

  85. Cu-Corb: his son; King of Leinster.

    He had the following sons:

    1. Niadh Corb, who is described below
    2. Messincorb, a quo Dal Messincorb
    3. Cormac, a quo Dal Cormaic, and who was the ancestor of Quirk
    4. Cairbre Dluitheachar
  86. Niadh Corb: his son. He was a most valiant and warlike prince, "Nia" signifies hero. Had following sons:
    1. Cormac Gealtach, who is described below
    2. Ceathramhadh
  87. Cormac Gealtach: his son. He succeeded his father and was a great general, and led the Irish army into Scotland, to assist the Picts and Scots against the Romans, who were commanded by Agricola. The battle with the Romans on the Grampian Hills was fierce and bloody; but the superior discipline of the Roman legions made it decisive in their favor. At his death he was succeeded by his son...
  88. Felim Fiorurglas: his son. Had the following children:
    1. Cathair Mor, who is described below
    2. Main Mal, the ancestor of O'Kelly of Cualan (in Wicklow), O'Tighe, and O'Cuallan
    3. Eithne
  89. Cathair Mor/Mar, 109th Monarch of Ireland in the beginning of the 2nd century: son of Felim Fiorurglas.
  90. Fiachu Ba hAiccid : youngest son of Cathair Mor; died 220. His father praised him for his bravery and spirit, and for the universal love he gained. He was called "the lame" on account of a wound he received in the battle of Moigh Acha, where his father was slain. From his posterity came the majority of the kings of Leinster
  91. Bressal Belach 1 & 2 (large lipped): his son; was the 2nd Christian King of Leinster. Had following sons:
    1. Labhradh, who is described below
    2. Endae Niae/Enna Niadh , who begins family of O'Tooles

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    The ancient kings of Leinster (Ui Cinnsealaigh = Hy Kinsella) had fortresses or royal residences at Dinn Righ, near the river Barrow, between Carlow and Leighlin; at Naas, in Kildare; and, in after times at the city of Ferns in Wexford, which was their capital; and also at Old Ross in Wexford; and at Ballymoon in Carlow. The Ui Cinnsealaigh were inaugurated as kings of Leinster at a place called Cnoc-an-Bhogha, attended by O'Nolan, who was the King's Marshal, and Chief of Forth in Carlow; by O'Doran, Chief Brehon of Leinster; and by MacKeogh, their Chief Bard.

    The major Leinster families begin to split off at this point

  92. Labriad/Labhradh Laidech : son of Breasal Bealach. Had the following sons:
    1. Eanna Cinnsealaigh, who is described below.
    2. Deagh, a quo Ui Deagha Mor; in Ui Cinnsealaigh lands.
  93. Endae/Eanna Cennselach : elder son of Labhradh; married Conang; was named Ceann-Salach by Cednathech the Druid, whom he slew at Croghan Hill, in the King's County, where Eanna defeated Eochaidh Muigh Meadhoin (Eochy Moyvone), the Monarch, 365. Had following children:
    1. Feidhlimidh (Felim)
    2. Eochu (Eochaidh) Cinnsealaigh, who was exiled to Scotland by the Irish Monarch Niall of the Nine Hostages, whom Eochu later assassinated near Boulogne, on the river Leor (now the Lianne).
    3. Crimthann Cass, who is described below
    4. Earc
    5. Aongus
    6. Conal
    7. Trian
    8. Cairpre
  94. Crimthann Cass: 3rd son of Eanna Cinnsealach; was King of Leinster for 40 years; baptized by St. Patrick at Rathvilly around 448; slain in 484 by his grandson Eochaidh Guinech of the Hy-Bairche. Married Mell, daughter of Erebran of the Desies in Munster (son of Eoghan Bric, son of Art Cuirb, son of Fiacha Suighde, son of Felim Rachtmar). Had following children:
    1. Ingen, wife of Daire MacErcadh of the Hy-Bairche
    2. Nathach (Dathi), who is described below
    3. Fiacra the Fair, made first bishop of Leinster by St.Patrick
    4. Eithne Uathach, wife of Aongus MacNadfraech, King of Munster
    5. Fergus, who defeated Diarmuid MacCearbhaill at Drum Laeghaire, by the side of Cais in Hy-Faelain, defending the Boromha Tribute
    6. Aongus
    7. Etchen
    8. Cobthach
  95. Nath(ach): son of Crimthan Cass; was King of Leinster for 10 years; baptized in his infancy by St. Patrick. Had following children:
    1. Owen Caoch, who is described below
    2. Cormac
    3. Faelan, who had a son named Fergus
    4. Olioll
  96. Eog(h)an (Owen) Caoch : eldest son of Nath(ach). Had following sons:
    1. Siollan, who is described below
    2. Fergus, ancestor of O'Ryan
  97. Siollan (skinny person): son of Eoghan Caoch
  98. Faelan: his son; was King of Leinster for 9 years.
  99. Faolchu: his son. Had following sons:
    1. Elodach, King of Leinster for 7 years
    2. Onchu, who is described below
    3. Aongus, slain in 721 at Maisden, Mullaghmast
  100. Onchu: son of Faolchu
  101. Rudgal: his son. Had following sons:
    1. Aodh (Hugh), who is described below
    2. Flann, slain at Allen, in the Co. Kildare, 722
  102. Aodh: son of Rudgal. Had following sons:
    1. Diarmuid, who is described below
    2. Bruadar, slain in 853
  103. Diarmuid: son of Aodh; Had following sons:
    1. Cairbre, who is described below
    2. Tadhg, slain in 865
  104. Cairbre: son of Diarmuid; slain in 876
  105. Cinaed/Ceneth: his son; slain by the Danes of Loch Carmen; was King of Leinster for 13years. Had following sons:
    1. Echtighern, King of Leinster for 9 years; slain in 951 by the sons of Ceallach, his brother. He had following son:
      1. Cairpre, abbot of Clonmore, who died in 974
      2. Aodh, who slew Donal Cloen in 983
      3. Bruadar (Bran?) who died in 982, and was King of Leinster for 4 years
    2. Ceallach, who is described below
  106. Ce(a)llach: 2nd son of Ceneth; was slain by the Ossorians in 945, at Athcliath (Dublin). He had following sons:
    1. Donnchad/Doncadh, King of Leinster for 6 years
    2. Donall, who is described below
  107. Do(m)nall: 2nd son of Ceallach; was King of Leinster for 9 years; slain by the Ossorians in 974. Had following sons:
    1. Aodh
    2. Doncadh, slain by Donal Cloen in 983
    3. Diarmuid, who is described below
    4. Maolruanaidh, who was King of Leinster for 13 years
  108. Diarmait/Diarmuid: 3rd son of Donal; was King of Leinster for 13 years; died in 997
  109. Mael/Donnchad Mael(Maol)na mBo : his son; was King of Leinster for 9 years. Had following sons:
    1. Donal Reamhar, slain in 1041 at Killmolappog, Co. Carlow. He had 3 sons:
      1. Donchadh, slain in 1089 by O'Connor Failghe (Faley)
      2. Donal, who was a hostage of Tirlogh O'Brien
      3. Ruadh, who gave Clonkeen, near Kingstown, to Christ Church in Dublin
    2. Diarmuid, who is described below
  110. Diarmait/Diarmuid 2nd son of Donoch Maol-na-mBo; was the 47th Christian King of Leinster, and the 177th Milesian Monarch of Ireland; was slain on the 23rd Feb, 1072, at Odhba, near Navan; married Darbhforgal (died 1080), grand-daughter of the Monarch Brian Boromha. Had following children:
    1. Murcha, who is described below
    2. Glunairn, who in 1071, was slain by the Meath men at Donlah, and buried at Duleek
    3. Enna, who had a son Diarmuid, slain in 1098.
  111. Murcha(d) (a sea warrior, also called Morough): eldest son of Diarmaid; was the 50th Christian King of Leinster; invaded the Isle of Man in 1070; died in Dublin on the 8th of December, 1090. Had following children:
    1. Donal, who was King of Dublin, died after 3 days illness in 1075
    2. Gormlath, who was Abbess of Kildare, died in 1112
    3. Donoch, who is described below.
    4. Enna, who had a son Diarmuid, died 1113 in Dublin
    5. Glunairn, whose daughter Sadhbh (died 1171) was Abbess of Kildare
    6. Murcha (or Moragh)
  112. Donnchad/Donoch MacMorough: the third son of Murcha; was King of Dublin and the 56th Christian King of Leinster; slain in 1115 by Donal O'Brien and the Danes at Dublin. He had 3 sons of whom Dermod was his second. Had following children:
    1. Enna, King of Leinster, died in Wexford in 1126
    2. Dermod, who is described below
    3. Murrough, King of Hy Cinnsealach while Dermod was away in 1166
  113. DiarmidDermot naNGhall: 2nd son of Donoch MacMorough; died 1171; was the 58th Christian King of Leinster. Had following children:
    1. Eanna Cinnsealach. The Kinsella family line springs from Eanna.
    2. Dervorgilla. She married into the MacGilleholmock's of Dublin.
    3. Donal Kavanagh (fostered with Kavanaghs). The Kavanagh family line springs from both Donal and from his foster family.
    4. Orlacan, who married Donal O'Brien
    5. Eva/Aoife, who married Strongbow
    6. Conor who was killed by Rory O'Connor
  114. Eanna Cinnsealaigh: 2ndson of Dermod na nGall, King of Leinster; first assumed the surname Kinselagh. He was blinded by Ossory.
  115. Tirlach: his son;
  116. Morach: his son.
  117. Thomas Fionn: his son.
  118. Dermod: his son; had an elder brother named Art, who was slain by MacMorough in 1383, and from whom descended Slioght Thomas Fionn.
  119. Art: his son.
  120. Donoch: his son.
  121. Arthur: his son.
  122. Donoch: his son.
  123. Edmund Kinselagh: his son.
  124. Dermod Dubh: his son; Chief of the clan in 1580 son of Aodh


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Information taken from O'Hart's "Irish Pedigrees" and Rev. P.L.O'Toole's "History of the Clan O'Toole"