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Mary FitzMaurice, 4th Countess of Orkney

British noble (1755-1831)
Person human Q6779542
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Mary FitzMaurice, 4th Countess of Orkney

Summary

Mary FitzMaurice, 4th Countess of Orkney is a human[1]. She was born on +1755-09-04T00:00:00Z[2]. She died on +1831-12-30T00:00:00Z[3]. She worked as a politician[4]. She ranks in the top 0.73% of human entities by monthly Wikipedia readership (3 views/month, #7,300 of 1,000,298).[5]

Key Facts

  • Mary FitzMaurice, 4th Countess of Orkney was born on +1755-09-04T00:00:00Z[2].
  • Mary FitzMaurice, 4th Countess of Orkney died on +1831-12-30T00:00:00Z[3].
  • Mary FitzMaurice, 4th Countess of Orkney's father was Murrough O'Brien, 1st Marquess of Thomond[6].
  • Mary FitzMaurice, 4th Countess of Orkney's mother was Mary O'Brien, 3rd Countess of Orkney[7].
  • Mary FitzMaurice, 4th Countess of Orkney was married to Thomas FitzMaurice[8].
  • A child of Mary FitzMaurice, 4th Countess of Orkney was John FitzMaurice, Viscount Kirkwall[9].
  • Mary FitzMaurice, 4th Countess of Orkney worked as a politician[4].
  • Mary FitzMaurice, 4th Countess of Orkney is recorded as female[10].
  • Mary FitzMaurice, 4th Countess of Orkney's instance of is recorded as human[11].
  • Mary FitzMaurice, 4th Countess of Orkney's noble title is recorded as Earl of Orkney[12].
  • Mary FitzMaurice, 4th Countess of Orkney's ISNI is recorded as 0000000047546386[13].
  • Mary FitzMaurice, 4th Countess of Orkney's VIAF cluster ID is recorded as 73720946[14].
  • Mary FitzMaurice, 4th Countess of Orkney's Library of Congress authority ID is recorded as nr92035931[15].
  • Mary FitzMaurice, 4th Countess of Orkney's Freebase ID is recorded as /m/0f9sgf[16].
  • Mary FitzMaurice, 4th Countess of Orkney's family name is recorded as O'Brien[17].
  • Mary FitzMaurice, 4th Countess of Orkney's given name is recorded as Mary[18].
  • Mary FitzMaurice, 4th Countess of Orkney's National Portrait Gallery is recorded as mp54611[19].
  • Mary FitzMaurice, 4th Countess of Orkney's genealogics.org person ID is recorded as I00222533[20].
  • Mary FitzMaurice, 4th Countess of Orkney's Geni.com profile ID is recorded as 6000000014726506625[21].
  • Mary FitzMaurice, 4th Countess of Orkney's WikiTree person ID is recorded as O'Brien-2631[22].
  • Mary FitzMaurice, 4th Countess of Orkney's National Library of Wales Authority ID is recorded as orkney-mary-fitzmaurice-countess-of-1755-1831[23].
  • Mary FitzMaurice, 4th Countess of Orkney's LBT person ID is recorded as LyOrkne1831[24].
  • Mary FitzMaurice, 4th Countess of Orkney's Prabook ID is recorded as 2277617[25].
  • Mary FitzMaurice, 4th Countess of Orkney's Electronic Enlightenment ID is recorded as fitzmmary0024612[26].
  • Mary FitzMaurice, 4th Countess of Orkney's SNAC ARK ID is recorded as w6gk35m9[27].

Body

Origins and Family

Mary FitzMaurice, 4th Countess of Orkney was born on +1755-09-04T00:00:00Z[2]. Her father was Murrough O'Brien, 1st Marquess of Thomond[6]. Her mother was Mary O'Brien, 3rd Countess of Orkney[7].

Career and Affiliations

Mary FitzMaurice, 4th Countess of Orkney's professions included politician[4].

Personal Life

Mary FitzMaurice, 4th Countess of Orkney was married to Thomas FitzMaurice[8]. A child of her was John FitzMaurice, Viscount Kirkwall[9].

Death and Burial

Mary FitzMaurice, 4th Countess of Orkney died on +1831-12-30T00:00:00Z[3].

Why It Matters

Mary FitzMaurice, 4th Countess of Orkney ranks in the top 0.73% of human entities by monthly Wikipedia readership (3 views/month, #7,300 of 1,000,298).[5]

FAQs

Who were Mary FitzMaurice, 4th Countess of Orkney's parents?

Mary FitzMaurice, 4th Countess of Orkney's father was Murrough O'Brien, 1st Marquess of Thomond[6]. Mary FitzMaurice, 4th Countess of Orkney's mother was Mary O'Brien, 3rd Countess of Orkney[7].

Who was Mary FitzMaurice, 4th Countess of Orkney married to?

Mary FitzMaurice, 4th Countess of Orkney's spouses include Thomas FitzMaurice[8].

What did Mary FitzMaurice, 4th Countess of Orkney do for work?

Mary FitzMaurice, 4th Countess of Orkney worked as politician[4].

References

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

Direct Wikidata claims

  1. [10] ↑ . wikidata.org.
  2. [6] ↑ . wikidata.org.
  3. [7] ↑ . wikidata.org.
  4. [8] ↑ . Retrieved . wikidata.org.
  5. [11] ↑ . wikidata.org.
  6. [9] ↑ . wikidata.org.
  7. [12] ↑ . wikidata.org.
  8. [4] ↑ . wikidata.org.
  9. [13] ↑ . wikidata.org.
  10. [14] ↑ . wikidata.org.
  11. [15] ↑ . Virtual International Authority File. Retrieved . wikidata.org.
  12. [2] ↑ . SNAC. Retrieved . wikidata.org.
  13. [3] ↑ . SNAC. Retrieved . wikidata.org.
  14. [16] ↑ . wikidata.org.
  15. [17] ↑ . wikidata.org.
  16. [18] ↑ . wikidata.org.
  17. [19] ↑ . wikidata.org.
  18. [20] ↑ . wikidata.org.
  19. [21] ↑ . wikidata.org.
  20. [22] ↑ . wikidata.org.
  21. [23] ↑ . wikidata.org.
  22. [24] ↑ . wikidata.org.
  23. [25] ↑ . wikidata.org.
  24. [26] ↑ . wikidata.org.
  25. [27] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [5] ↑ . Wikimedia Foundation. dumps.wikimedia.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 FitzMaurice, 4th Countess of Orkney. Retrieved May 3, 2026, from https://4ort.xyz/entity/mary-fitzmaurice-4th-countess-of-orkney
MLA “Mary FitzMaurice, 4th Countess of Orkney.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/mary-fitzmaurice-4th-countess-of-orkney.
BibTeX @misc{4ortxyz_mary-fitzmaurice-4th-countess-of-orkney_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Mary FitzMaurice, 4th Countess of Orkney}}, year = {2026}, url = {https://4ort.xyz/entity/mary-fitzmaurice-4th-countess-of-orkney}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Mary FitzMaurice, 4th Countess of Orkney — https://4ort.xyz/entity/mary-fitzmaurice-4th-countess-of-orkney (retrieved 2026-05-03)

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