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Mary O'Brien

(1662-1683)
Person human Q75607342
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Mary O'Brien

Summary

Mary O'Brien is a human[1]. She was born on +1662-05-07T00:00:00Z[2]. She died on +1683-11-24T00:00:00Z[3].

Key Facts

  • Mary O'Brien was born on +1662-05-07T00:00:00Z[2].
  • Mary O'Brien died on +1683-11-24T00:00:00Z[3].
  • Mary O'Brien's father was Henry O'Brien, Lord Ibrackan[4].
  • Mary O'Brien's mother was Katherine Stuart, Baroness Clifton (of Leighton Bromswold)[5].
  • Mary O'Brien was married to John FitzGerald, 18th Earl of Kildare[6].
  • A child of Mary O'Brien was Henry FitzGerald, Lord Offaly[7].
  • Mary O'Brien is recorded as female[8].
  • Mary O'Brien's instance of is recorded as human[9].
  • Mary O'Brien's honorific prefix is recorded as The Honourable[10].
  • Mary O'Brien's family name is recorded as O'Brien[11].
  • Mary O'Brien's given name is recorded as Mary[12].
  • Mary O'Brien's genealogics.org person ID is recorded as I00222524[13].
  • Mary O'Brien's WikiTree person ID is recorded as O'Brien-3898[14].
  • Mary O'Brien's WeRelate person ID is recorded as Mary_O'Brien_(49)[15].
  • Mary O'Brien's The Peerage person ID is recorded as p24120.htm#i241197[16].
  • Mary O'Brien's Roglo person ID is recorded as p=mary;n=o brien[17].

Body

Origins and Family

Mary O'Brien was born on +1662-05-07T00:00:00Z[2]. Her father was Henry O'Brien, Lord Ibrackan[4]. Her mother was Katherine Stuart, Baroness Clifton (of Leighton Bromswold)[5].

Personal Life

Among Mary O'Brien's spouses was John FitzGerald, 18th Earl of Kildare[6]. A child of her was Henry FitzGerald, Lord Offaly[7].

Death and Burial

Mary O'Brien died on +1683-11-24T00:00:00Z[3].

FAQs

Who were Mary O'Brien's parents?

Mary O'Brien's father was Henry O'Brien, Lord Ibrackan[4]. Mary O'Brien's mother was Katherine Stuart, Baroness Clifton (of Leighton Bromswold)[5].

Who was Mary O'Brien married to?

Mary O'Brien's spouses include John FitzGerald, 18th Earl of Kildare[6].

References

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

Direct Wikidata claims

  1. [8] ↑ . The Peerage. wikidata.org.
  2. [4] ↑ . The Peerage. wikidata.org.
  3. [5] ↑ . The Peerage. wikidata.org.
  4. [6] ↑ . Retrieved . wikidata.org.
  5. [9] ↑ . wikidata.org.
  6. [7] ↑ . The Peerage. wikidata.org.
  7. [10] ↑ . wikidata.org.
  8. [2] ↑ . The Peerage. wikidata.org.
  9. [3] ↑ . The Peerage. wikidata.org.
  10. [11] ↑ . wikidata.org.
  11. [12] ↑ . wikidata.org.
  12. [13] ↑ . wikidata.org.
  13. [14] ↑ . wikidata.org.
  14. [15] ↑ . wikidata.org.
  15. [16] ↑ . Retrieved . wikidata.org.
  16. [17] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. 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). Mary O'Brien. Retrieved May 3, 2026, from https://4ort.xyz/entity/mary-o-brien-q75607342
MLA “Mary O'Brien.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/mary-o-brien-q75607342.
BibTeX @misc{4ortxyz_mary-o-brien-q75607342_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Mary O'Brien}}, year = {2026}, url = {https://4ort.xyz/entity/mary-o-brien-q75607342}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Mary O'Brien — https://4ort.xyz/entity/mary-o-brien-q75607342 (retrieved 2026-05-03)

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