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William O'Brien, 4th Earl of Inchiquin

British earl and politician
Person human Q8016216
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William O'Brien, 4th Earl of Inchiquin

Summary

William O'Brien, 4th Earl of Inchiquin is a human[1]. His place of birth was Ireland[2]. He was born on +1700-00-00T00:00:00Z[3]. He died on +1777-07-18T00:00:00Z[4]. He worked as a politician[5]. He ranks in the top 0.73% of human entities by monthly Wikipedia readership (13 views/month, #7,292 of 1,000,298).[6]

Key Facts

  • William O'Brien, 4th Earl of Inchiquin's place of birth was Ireland[2].
  • William O'Brien, 4th Earl of Inchiquin was born on +1700-00-00T00:00:00Z[3].
  • William O'Brien, 4th Earl of Inchiquin died on +1777-07-18T00:00:00Z[4].
  • William O'Brien, 4th Earl of Inchiquin's father was William O'Brien, 3rd Earl of Inchiquin[7].
  • William O'Brien, 4th Earl of Inchiquin's mother was Mary Villiers[8].
  • William O'Brien, 4th Earl of Inchiquin was married to Anne O'Brien, 2nd Countess of Orkney[9].
  • Among William O'Brien, 4th Earl of Inchiquin's spouses was Mary Moore[10].
  • A child of William O'Brien, 4th Earl of Inchiquin was Mary O'Brien, 3rd Countess of Orkney[11].
  • A child of William O'Brien, 4th Earl of Inchiquin was William O'Brien[12].
  • A child of William O'Brien, 4th Earl of Inchiquin was George O'Brien[13].
  • A child of William O'Brien, 4th Earl of Inchiquin was Augustus O'Brien[14].
  • A child of William O'Brien, 4th Earl of Inchiquin was Murrough O'Brien[15].
  • William O'Brien, 4th Earl of Inchiquin's professions included politician[5].
  • William O'Brien, 4th Earl of Inchiquin held the position of Member of the Privy Council of Ireland[16].
  • William O'Brien, 4th Earl of Inchiquin held the position of member of the 6th Parliament of Great Britain[17].
  • William O'Brien, 4th Earl of Inchiquin held the position of member of the 7th Parliament of Great Britain[18].
  • William O'Brien, 4th Earl of Inchiquin held the position of member of the 9th Parliament of Great Britain[19].
  • William O'Brien, 4th Earl of Inchiquin held the position of member of the 10th Parliament of Great Britain[20].
  • William O'Brien, 4th Earl of Inchiquin was educated at Kilkenny College[21].
  • William O'Brien, 4th Earl of Inchiquin's image is recorded as William O’Brien, 4th Earl of Inchiquin.jpg[22].
  • William O'Brien, 4th Earl of Inchiquin is recorded as male[23].
  • William O'Brien, 4th Earl of Inchiquin's instance of is recorded as human[24].
  • William O'Brien, 4th Earl of Inchiquin's noble title is recorded as count[25].
  • William O'Brien, 4th Earl of Inchiquin was affiliated with the Whigs[26].
  • William O'Brien, 4th Earl of Inchiquin's ISNI is recorded as 0000000050969064[27].

Body

Origins and Family

Born in Ireland[2], William O'Brien, 4th Earl of Inchiquin… he was born on +1700-00-00T00:00:00Z[3]. His father was William O'Brien, 3rd Earl of Inchiquin[7]. His mother was Mary Villiers[8].

Education

William O'Brien, 4th Earl of Inchiquin's education included a stint at Kilkenny College[21].

Career and Affiliations

William O'Brien, 4th Earl of Inchiquin's professions included politician[5]. Positions held include Member of the Privy Council of Ireland[16], member of the 6th Parliament of Great Britain[17], member of the 7th Parliament of Great Britain[18], member of the 9th Parliament of Great Britain[19], and member of the 10th Parliament of Great Britain[20].

Personal Life

Spouses include Anne O'Brien, 2nd Countess of Orkney[9], a politician[28], 1696–1756[29], of Kingdom of Great Britain[30] and Mary Moore[10]. Children include Mary O'Brien, 3rd Countess of Orkney[11], a politician[31], 1721–1791[32]; William O'Brien[12]; George O'Brien[13]; Augustus O'Brien[14]; and Murrough O'Brien[15]. William O'Brien, 4th Earl of Inchiquin was affiliated with the Whigs[26].

Death and Burial

William O'Brien, 4th Earl of Inchiquin died on +1777-07-18T00:00:00Z[4].

Why It Matters

William O'Brien, 4th Earl of Inchiquin ranks in the top 0.73% of human entities by monthly Wikipedia readership (13 views/month, #7,292 of 1,000,298).[6]

FAQs

Where was William O'Brien, 4th Earl of Inchiquin born?

William O'Brien, 4th Earl of Inchiquin was born in Ireland[2].

Who were William O'Brien, 4th Earl of Inchiquin's parents?

William O'Brien, 4th Earl of Inchiquin's father was William O'Brien, 3rd Earl of Inchiquin[7]. William O'Brien, 4th Earl of Inchiquin's mother was Mary Villiers[8].

Who was William O'Brien, 4th Earl of Inchiquin married to?

William O'Brien, 4th Earl of Inchiquin's spouses include Anne O'Brien, 2nd Countess of Orkney[9] and Mary Moore[10].

What did William O'Brien, 4th Earl of Inchiquin do for work?

William O'Brien, 4th Earl of Inchiquin worked as politician[5].

Where did William O'Brien, 4th Earl of Inchiquin go to school?

William O'Brien, 4th Earl of Inchiquin was educated at Kilkenny College[21].

References

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

Direct Wikidata claims

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

Inline context (facts about related entities)

  1. [28] ↑ . Wikidata. wikidata.org. → on this site
  2. [29] ↑ . Wikidata. wikidata.org. → on this site
  3. [30] ↑ . Wikidata. wikidata.org. → on this site
  4. [31] ↑ . Wikidata. wikidata.org. → on this site
  5. [32] ↑ . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [6] ↑ . 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). William O'Brien, 4th Earl of Inchiquin. Retrieved April 10, 2026, from https://4ort.xyz/entity/william-o-brien-4th-earl-of-inchiquin
MLA “William O'Brien, 4th Earl of Inchiquin.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/william-o-brien-4th-earl-of-inchiquin.
BibTeX @misc{4ortxyz_william-o-brien-4th-earl-of-inchiquin_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{William O'Brien, 4th Earl of Inchiquin}}, year = {2026}, url = {https://4ort.xyz/entity/william-o-brien-4th-earl-of-inchiquin}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): William O'Brien, 4th Earl of Inchiquin — https://4ort.xyz/entity/william-o-brien-4th-earl-of-inchiquin (retrieved 2026-04-10)

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