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Lafracoth O'Brien

Peerage person ID=335172
Person human Q75789743

Facts

9 properties
Instance of
human
Sex or gender
female[7]
Date of birth
1076
Date of death
1119
Father
Muirchertach Ua Briain[3]
Mother
Dubheboblaigh of Ossory[4]
Spouse
Arnulf de Montgomery[5]
Child
Alice de Montgomery[6]
Family name
O'Brien[8]
🏷️ Also known as
en Lafracoth O'Brien ru Лафракот О’Брайен
🔖 Identifiers · 6
Genealogics.org person ID
I00474900
Rodovid ID
1613419
Roglo person ID
p=lafracoth;n=o+brien
The Peerage person ID
p33518.htm#i335172
WeRelate person ID
Lafrocoth_(1)
WikiTree person ID
O'Brien-433

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Summary

Lafracoth O'Brien was born in 1076[1]. She died in 1119[2].

FAQs

Who were Lafracoth O'Brien's parents?

Lafracoth O'Brien's father was Muirchertach Ua Briain[3]. Lafracoth O'Brien's mother was Dubheboblaigh of Ossory[4].

Who was Lafracoth O'Brien married to?

Lafracoth O'Brien's spouses include Arnulf de Montgomery[5].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [7] ↑ . The Peerage. wikidata.org.
  2. [3] ↑ . The Peerage. wikidata.org.
  3. [4] ↑ . Genealogics. wikidata.org.
  4. [5] ↑ . Retrieved . wikidata.org.
  5. [6] ↑ . The Peerage. wikidata.org.
  6. [1] ↑ . WikiTree. wikidata.org.
  7. [2] ↑ . WikiTree. wikidata.org.
  8. [8] ↑ . wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Lafracoth O'Brien. Retrieved October 31, 2026, from https://4ort.xyz/entity/lafracoth-o-brien
MLA “Lafracoth O'Brien.” 4ort.xyz Knowledge Graph, 4ort.xyz, 31 Oct. 2026, https://4ort.xyz/entity/lafracoth-o-brien.
BibTeX @misc{4ortxyz_lafracoth-o-brien_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Lafracoth O'Brien}}, year = {2026}, url = {https://4ort.xyz/entity/lafracoth-o-brien}, note = {Accessed: 2026-10-31}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Lafracoth O'Brien — https://4ort.xyz/entity/lafracoth-o-brien (retrieved 2026-10-31)

Canonical URL: https://4ort.xyz/entity/lafracoth-o-brien · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 22w ago · Melderick · 2026-06-05 view diff on Wikidata ↗
    Mother → Dubheboblaigh of Ossory
    Roglo person ID → p=lafracoth;n=o+brien
    Genealogics.org person ID → I00474900
    Family name → O'Brien
    + 13 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/35133|batch #35133]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.