Mary O'Brien

Peerage person ID=19325
Person human Q75260849
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Mary O'Brien

Summary

Mary O'Brien is a human[1]. She was born on +1620-00-00T00:00:00Z[2].

Key Facts

  • Mary O'Brien was born on +1620-00-00T00:00:00Z[2].
  • Mary O'Brien's father was Dermod O'Brien, 5th Baron Inchiquin[3].
  • Mary O'Brien's mother was Ellen FitzGerald[4].
  • Mary O'Brien was married to Michael Boyle[5].
  • A child of Mary O'Brien was Eleanor Boyle[6].
  • A child of Mary O'Brien was Honora Boyle[7].
  • A child of Mary O'Brien was Murrough Boyle, 1st Viscount Blesington[8].
  • A child of Mary O'Brien was Elizabeth Boyle[9].
  • Mary O'Brien is recorded as female[10].
  • Mary O'Brien's instance of is recorded as human[11].
  • Mary O'Brien's honorific prefix is recorded as The Honourable[12].
  • Mary O'Brien's family name is recorded as O'Brien[13].
  • Mary O'Brien's given name is recorded as Mary[14].
  • Mary O'Brien's genealogics.org person ID is recorded as I00088335[15].
  • Mary O'Brien's WikiTree person ID is recorded as O'Brien-5985[16].
  • Mary O'Brien's The Peerage person ID is recorded as p1933.htm#i19325[17].
  • Mary O'Brien's Roglo person ID is recorded as p=mary;n=o+brien;oc=3[18].

Body

Origins and Family

Mary O'Brien was born on +1620-00-00T00:00:00Z[2]. Her father was Dermod O'Brien, 5th Baron Inchiquin[3]. Her mother was Ellen FitzGerald[4].

Personal Life

Among Mary O'Brien's spouses was Michael Boyle[5]. Children include Eleanor Boyle[6], 1650–1675[19]; Honora Boyle[7]; Murrough Boyle, 1st Viscount Blesington[8], 1645–1718[20], of Kingdom of Great Britain[21]; and Elizabeth Boyle[9], b. 1640[22].

FAQs

Who were Mary O'Brien's parents?

Mary O'Brien's father was Dermod O'Brien, 5th Baron Inchiquin[3]. Mary O'Brien's mother was Ellen FitzGerald[4].

Who was Mary O'Brien married to?

Mary O'Brien's spouses include Michael Boyle[5].

References

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

Direct Wikidata claims

  1. [10] . The Peerage. wikidata.org.
  2. [3] . The Peerage. wikidata.org.
  3. [4] . The Peerage. wikidata.org.
  4. [5] . Retrieved . wikidata.org.
  5. [11] . wikidata.org.
  6. [6] . The Peerage. wikidata.org.
  7. [7] . The Peerage. wikidata.org.
  8. [8] . The Peerage. wikidata.org.
  9. [9] . Genealogics. wikidata.org.
  10. [12] . wikidata.org.
  11. [2] . WikiTree. wikidata.org.
  12. [13] . wikidata.org.
  13. [14] . wikidata.org.
  14. [15] . wikidata.org.
  15. [16] . wikidata.org.
  16. [17] . Retrieved . wikidata.org.
  17. [18] . wikidata.org.

Inline context (facts about related entities)

  1. [19] . Wikidata. wikidata.org. → on this site
  2. [20] . Wikidata. wikidata.org. → on this site
  3. [21] . Wikidata. wikidata.org. → on this site
  4. [22] . Wikidata. wikidata.org. → on this site

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-q75260849
MLA “Mary O'Brien.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/mary-o-brien-q75260849.
BibTeX @misc{4ortxyz_mary-o-brien-q75260849_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Mary O'Brien}}, year = {2026}, url = {https://4ort.xyz/entity/mary-o-brien-q75260849}, 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-q75260849 (retrieved 2026-05-03)

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