Giollachriosd Ó Catháin

• Preferred Name: Giollachriosd Ó Catháin
  
• Gender: M
  
• Birth: ABT 1020 in Limavady District, County Londonderry, Ireland at LATI: N5 LONG: E7 with note: Limavady, County Londonderry, Northern Ireland
  
• Death: BEF 1120
  
• Residence: in Limavady, County Londonderry, Ireland at LATI: N5.0472 LONG: E6.9348
  
• FSID: LTZH-KYK
  
• Clan Name: with note: Description: Clan of The Ó Catháin - a sept of the Cenél nEógain branch of the Northern Uí Néill
  
• Notes:

  === Life Sketch ===
  Biography
  Giollachriosd (Gilchrist) was a son of Conn Ciconntach O'Cahan, the first to assume the family name of O'Cahan as a surname. [1]
  
  The Ó Catháin, meaning "descendants of Cahan", were a sept of the Cenél nEógain branch of the Northern Uí Néill [2]
  
  The first known O'Ceanns held a family seat in Derry, Ulster, Ireland from at least the 10th. century. The great variety in spellings of this family name include - Cain, Caine, Kane, Cahan, O'Cahan, Kean, Keane, O'Keane, Ceane, Cean, Kahan, O'Kean, O'Kane, O'Kaine, Kaine, Keann, Cainn, Cainne, Kainne, Kainn, Cahann, O'Cain and many others. [3]
  
  Sources
  ↑ Giollachriosd was the son of Conn Cionntach O'Cahan: son of Dermod; first assumed this sirname; had a brother named Annselan, who was the ancestor of O'Bocainain ("bocain:" Irish, fairies; "an," one who), anglicised Buchanan. This Annselan was the first of the family who settled in Scotland. Library Ireland : Princes of Limavady, County Londonderry
  ↑ Ó Catháin
  ↑ Wikipedia : O'Ceann
  See also:
  
  O'Cahans, Princes of Ulster : Rise to Power
  Irish Pedigrees: Or, The Origin and Stem of the Irish Nation, Volume 1 by John O'Hart, https://books.google.com/books?id=2icbAAAAYAAJ&pg=PA623&lpg=PA623&dq=~genealogy+Giollachriosd+O%27Cahan+Limavady,+Ulster,+Ireland&source=bl&ots=XWGrQBW0Vu&sig=ACfU3U0ANbVjn_z65V3OjlgAdWwXpBHYCg&hl=en&sa=X&ved=2ahUKEwiCruif9ZHiAhVPKawKHZ0TA24Q6AEwBnoECBIQAQ#v=onepage&q=~genealogy%20Giollachriosd%20O'Cahan%20Limavady%2C%20Ulster%2C%20Ireland&f=false
  
  https://www.wikitree.com/wiki/O'Cahan-5

1. Iomhar O'Cahan, b. ABT 1060 in Ireland     d. BEF 1160