Princess Lafracoth O'Brien

1076 - 1135  (59 years)

• Name	Lafracoth O'Brien  [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]
  Title	Princess
  Birth	1076	Pembrokeshire, Wales
  Gender	Female
  Death	1135	Pembrokeshire, Wales
  Notes	Daughter of the King of Munster, Ireland. Birth & Death dates from Darrell Wilson, CMS # 1609.
  Person ID	I1755	MontyHistNotes_II
  Last Modified	6 Sep 2025

  
  

  Father	King of Munster Muirchertach O'Brien,   b. 1030, Clare, Ireland d. 1119, Waterford, Ireland (Age 89 years)
  Relationship	natural
  Mother	Dubhchobhleigh Na Ossory,   b. 1050, Ossory,,,Ireland d. 1098 (Age 48 years)
  Relationship	natural
  Family ID	F1651	Group Sheet  |  Family Chart

  
  

  Family	Earl of Pembroke Arnulph Cimbricus Montgomerie,   b. 1060, Saint-Germain-de-Montgommery, Calvados, Normandy, France d. 1130, France (Age 70 years)
  Marriage	1101	Pembroke, Pembrokeshire, Wales   [6, 7, 10]
  Children	+ 1. Phillip Cimbricus Montgomerie,   b. 1101, Pembrokeshire, Wales d. 1177, Thornton, Fife, Scotland (Age 76 years)  [Father: natural]  [Mother: natural] + 2. Alice Montgomerie,   b. 1115, Clare, Ireland d. Ireland  [Father: natural]  [Mother: natural]
  Family ID	F707	Group Sheet  |  Family Chart
  Last Modified	6 Sep 2025

  
  

• Event Map

  Birth - 1076 - Pembrokeshire, Wales Marriage - 1101 - Pembroke, Pembrokeshire, Wales Death - 1135 - Pembrokeshire, Wales  = Link to Google Earth

  
  

• Folios

  T H Montgomery - Pages 036-045 ; IX - XII Genealogical History of the Family of Montgomery [IX - XII] John Montgomerie

  
  

• Sources

  [S2103] Browning, Charles H, Americans of Royal Descent, (Name: Name: Porter and Coates; Location: Philadelphia, PA; Date: 1883;;), Americans_of_Royal_Descent_ed_by_C_H_Bro.;pdf Available on Google Books Pedigree XXX Campbell Pages 123-128. [S323] thePeerage.com, (Name: thePeerage.com;), Montgomerie Arnulph #266792 http://thepeerage.com/p26680.htm#i266792. [S833] Burke, Sir Bernard, Dormant, Abeyant, Forfeited, and Extinct Peerages, (Name: Burke's Peerage; Location: London, England; Date: 1883;), Available on CD Rom 7367 Notable British Families. [S323] thePeerage.com, (Name: thePeerage.com;), Montgomerie Alice #154870 http://thepeerage.com/p15487.htm#i154870. [S323] thePeerage.com, (Name: thePeerage.com;), Fitzgerald Maurice #104684 http://thepeerage.com/p10469.htm#i104684. [S273] Montgomery, Bo-Gabriel de, Origin and History of the Montgomerys, (Name: William Blackwood and Sons, Ltd; Location: Edinburgh and London; Date: 1948;), Chapter (Page 101) Montgomerys, Earls of Eglinton. This book is available electronically on ancestry.com [S426] Fraser, William, Memorials of the Montgomeries, Earls of Eglinton, Volume I Pages 7-9 I . ROBERT DE MUNDEGUMBRI, FIRST OF EAGLESHAME [1103-1178],. [S3755] Biographical Information from Wikipedia, (Name: Wikipedia; Location: en.wikipedia.org;), Montgomerie, Robert II (1022-1094) Accessed KRM 10 Nov 2020 11:16am https://en.wikipedia.org/wiki/Roger_de_Montgomery en.wikipedia.org. https://en.wikipedia.org/wiki/Roger_de_Montgomery [S3767] De Boever, Luc, The Montgommerys from the Vikings to our Present Day, (Name: l'Imprimerie Moderne de Bayeux; Location: Bayeux, France; Date: 2018;), Part 2, Section 8 Pages 35-40 Roger II Montgomerie. [S2784] Barns-Graham, Peter, Stirnet, (Name: Stirnet; Location: stirnet.com;), Montgomery 01 Accessed KRM 14 Nov 2020 8:45am https://www.stirnet.com/genie/data/british/mm4fz/montgomery01.php. Roger Montgomerie II Montgomery of Arundel, Montgomery of Shrewsbury, Counts of Alencon, Counts of Belesme, Counts of Ponthieu https://www.stirnet.com/genie/data/british/mm4fz/montgomery01.php [S1944] Price, Lucy Montgomery Smith, The Sydney-Smith and Clagett-Price Genealogy, (Name: Shenandoah Publishing House; Location: Strasburg, Virginia; Date: 1927;). Book found on Heritage Quest also available on Ancestry.com https://www.ancestry.com/search/collections/24094/ [S340] Montgomery, Thomas Harrison, Genealogical History of the Family of Montgomery, (Name: Printed for Private Circulation; Location: Philadelphia; Date: 1868;), Pages 036-045 IX-XII John Montgomerie through John Montgomery of Eaglesham https://www.ancestry.com/search/collections/12151/?count=50&f-F00032DB=36. Book found at Ancestry.com https://www.ancestry.com/search/collections/12151/ Electronic Book .PDF 170 pages a_genealogical_history_of_the_family_of_.pdf https://www.ancestry.com/search/collections/12151/?count=50&f-F00032DB=36