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Cathair Mór ("the great"), son of Feidhlimidh Fiorurghlas, a descendant of Conchobar Abradruad, was, according to Lebor Gabála Érenn, a High King of Ireland. He took power after the death of Fedlimid Rechtmar. Cathair ruled for three years, at the end of which he was killed by the Luaigne of Tara, led by Conn Cétchathach. The Lebor Gabála Érenn synchronises his reign with that of the Roman emperor Marcus Aurelius (161–180). The chronology of Geoffrey Keating's Foras Feasa ar Éirinn dates his reign to 113–116, that of the Annals of the Four Masters to 119–122.

Genealogy

According to Foras Feasa ar Éirinn, Cathaoir Mor was a son of Feidhlimidh Fiorurghlas, son of Cormac Gealta Gaoth, son of Nia Corb, son of Cu Corb, son of Mogh Corb, son of Conchubhar Abhradhruadh, son of Fionn File, son of Rossa Ruadh, son of Fearghus Fairrge, son of Nuadha Neacht, son of Seadna Siothbhac, son of Lughaidh Loithfhionn, son of Breasal Breac, son of Fiachaidh Foibhric, son of Oilill Glas, son of Fearadhach Foghlas, son of Nuadha Fullon, son of Ealloit, son of Art, son of Mogh Airt, son of Criomhthann Coscrach, son of Feidhlimidh Foirthriun, son of Fearghus Fortamhail, son of Breasal Breodhamhan, son of Aonghus Ollamh, son of Oilill Bracain, son of Labhraidh Loingseach of the race of Eireamhon.

Legends

He is said to have had thirty sons, but only ten of them had children; several medieval dynasties of Leinster traced their ancestors to them. His daughter Cochrann was said to have been the mother of the fenian hero Diarmuid Ua Duibhne.

He features in the saga Esnada Tige Buchet ("The Melody of the House of Buchet"). Cathair's daughter Eithne Tháebfhota is fostered by a hospitable Leinsterman named Buchet who has many herds of cattle, but Cathair's sons so exploit Buchet's hospitality that he is left with only one bull and seven cows, and the king, now old and enfeebled, is unable to restrain them. Buchet and his family, including Eithne, are reduced to living in a hut in the forest in Kells, County Meath. Later, when Cormac mac Airt is king, he marries Eithne and restores Buchet's fortunes (in other stories the king who marries Eithne is Cathair's successor Conn Cétchathach). In another saga, Fotha Catha Cnucha ("The Cause of the Battle of Cnucha"), Cathair gives the hill of Almu (Knockaulin, County Kildare) to the druid Nuada son of Aichi. This hill will later be famous as the home of Nuada's great-grandson Fionn mac Cumhaill.

Offspring

• Ros Failgeach mac Cathair Mór, ancestor of the Ó Conchubhair of Uí Failghe
• Daire Barrach mac Cathair Mór, ancestor of Uí Treasaig and Mac Gormáin of Uí Bairrche
• Bresal Einechglas mac Cathair Mór
• Fergus Luasgan mac Cathair Mór
• Ailill Cethech mac Cathair Mór
• Aengus Nic mac Cathair Mór
• Eochu Timine mac Cathair Mór
• Crimthann mac Cathair Mór, ancestor of Dubh of Leinster
• Curigh mac Cathair Mór, killed by Fionn mac Cumhail
  • Slectaire mac Curigh, maternal grandfather of Diarmuid Ua Duibhne and Oscar
  • Uchdelbh mac Curigh, wife of Fionn Fothart, a son of Conn Cétchathach
• Eithne Tháebfhota, wife of Conn Cétchathach
• Landabaria mac Cathair Mór, wife of Conn Cétchathach
• Cochrann, mother of the fenian hero Diarmuid Ua Duibhne.
• Fiacha Baicheda mac Cathair Mór, ancestor of Mac Murchada of the Uí Cheinnselaig
• Sodhealbh ní Cathair Mór

References

1. Lebor Gabála Érenn, Part V, page 331 & 535; by Robert Macalister.
2. ^ Foras Feasa ar Éirinn, Section 40, page 259, http://www.ucc.ie/celt/published/T100054/text050.html UCC CELT project. by Geoffrey Keating.
3. R. A. Stewart Macalister (ed. & trans.), Lebor Gabála Érenn: The Book of the Taking of Ireland Part V, Irish Texts Society, 1956, p. 331
4. Annals of the Four Masters M119-122
5. Geoffrey Keating, Foras Feasa ar Éirinn 1.40
6. ^ The Testament of Cathair Mór, translated by Miles Dillon
7. James MacKillop, Dictionary of Celtic Mythology, Oxford University Press, 1998, p. 72
8. "The Melody of the House of Buchet (summarised by Miles Dillon)
9. The Adventures of Art son of Conn Archived 2007-10-22 at the Wayback Machine
10. The Cause of the Battle of Cnucha
11. In Irish, this word means "daughter".
12. Daniel Byrne-Rothwell, The Byrnes and the O'Byrnes: Volume 2, House of Lochar, 2010 - Ireland, p. 8
13. O'clery, Michael (1630). Martyrology of Donegal. p. 301.
14. On the page of this book, the author wrote that Sodhealbh and her sister, Eithne, were the daughters of Baite, Cathair Mor don't be her father. But later on the book mentioned Sodhealbh as Cathair Mor's daughter and Oilill Olum's wife, probably a mistake of this author. Oilill Olum married Sadb, daughter of Eithne, another daughter of Cathair Mor.

External links

• The Testament of Cathair

• Legendary High Kings of Ireland