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Cornelius O'Callaghan, 1st Viscount Lismore

politician (1775-1857)
Person human Q24288423
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Cornelius O'Callaghan, 1st Viscount Lismore

Summary

Cornelius O'Callaghan, 1st Viscount Lismore is a human[1]. He was born on +1775-10-02T00:00:00Z[2]. He died on +1857-05-30T00:00:00Z[3]. He worked as a politician[4]. He ranks in the top 0.73% of human entities by monthly Wikipedia readership (1 views/month, #7,300 of 1,000,298).[5]

Key Facts

  • Cornelius O'Callaghan, 1st Viscount Lismore was born on +1775-10-02T00:00:00Z[2].
  • Cornelius O'Callaghan, 1st Viscount Lismore died on +1857-05-30T00:00:00Z[3].
  • Cornelius O'Callaghan, 1st Viscount Lismore's father was Cornelius O'Callaghan, 1st Baron Lismore[6].
  • Cornelius O'Callaghan, 1st Viscount Lismore's mother was Frances Ponsonby[7].
  • Among Cornelius O'Callaghan, 1st Viscount Lismore's spouses was Lady Eleanor Butler[8].
  • A child of Cornelius O'Callaghan, 1st Viscount Lismore was Cornelius O'Callaghan[9].
  • A child of Cornelius O'Callaghan, 1st Viscount Lismore was Q21557629[10].
  • A child of Cornelius O'Callaghan, 1st Viscount Lismore was William Frederick O'Callaghan[11].
  • A child of Cornelius O'Callaghan, 1st Viscount Lismore was Lady Anne Maria Louisa O'Callaghan[12].
  • Cornelius O'Callaghan, 1st Viscount Lismore's professions included politician[4].
  • Cornelius O'Callaghan, 1st Viscount Lismore held the position of Member of the Privy Council of Ireland[13].
  • Cornelius O'Callaghan, 1st Viscount Lismore held the position of member of the House of Lords[14].
  • Cornelius O'Callaghan, 1st Viscount Lismore held the position of member of the 3rd Parliament of the United Kingdom[15].
  • Cornelius O'Callaghan, 1st Viscount Lismore is recorded as male[16].
  • Cornelius O'Callaghan, 1st Viscount Lismore's instance of is recorded as human[17].
  • Cornelius O'Callaghan, 1st Viscount Lismore's noble title is recorded as Viscount Lismore[18].
  • Cornelius O'Callaghan, 1st Viscount Lismore's given name is recorded as Cornelius[19].
  • Cornelius O'Callaghan, 1st Viscount Lismore's Cambridge Alumni Database ID is recorded as OCLN793C[20].
  • Cornelius O'Callaghan, 1st Viscount Lismore's History of Parliament ID is recorded as 1790-1820/member/o8217callaghan-cornelius-1775-1857[21].
  • Cornelius O'Callaghan, 1st Viscount Lismore's genealogics.org person ID is recorded as I00246155[22].
  • Cornelius O'Callaghan, 1st Viscount Lismore's Hansard is recorded as mr-cornelius-ocallaghan[23].
  • Cornelius O'Callaghan, 1st Viscount Lismore's TheyWorkForYou ID is recorded as 24001[24].
  • Cornelius O'Callaghan, 1st Viscount Lismore's Geni.com profile ID is recorded as 6000000017405157740[25].
  • Cornelius O'Callaghan, 1st Viscount Lismore's Google Knowledge Graph ID is recorded as /g/11byzd2nxj[26].
  • Cornelius O'Callaghan, 1st Viscount Lismore's WikiTree person ID is recorded as O'Callaghan-609[27].

Body

Origins and Family

Cornelius O'Callaghan, 1st Viscount Lismore was born on +1775-10-02T00:00:00Z[2]. His father was Cornelius O'Callaghan, 1st Baron Lismore[6]. His mother was Frances Ponsonby[7].

Career and Affiliations

Cornelius O'Callaghan, 1st Viscount Lismore worked as a politician[4]. Positions held include Member of the Privy Council of Ireland[13]; member of the House of Lords[14], a position[28], in United Kingdom[29], founded in 1801[30]; and member of the 3rd Parliament of the United Kingdom[15], a position[31], in United Kingdom[32], founded in 1806[33].

Personal Life

Among Cornelius O'Callaghan, 1st Viscount Lismore's spouses was Lady Eleanor Butler[8]. Children include Cornelius O'Callaghan[9], a politician[34], 1809–1849[35]; Q21557629[10]; William Frederick O'Callaghan[11]; and Lady Anne Maria Louisa O'Callaghan[12].

Death and Burial

Cornelius O'Callaghan, 1st Viscount Lismore died on +1857-05-30T00:00:00Z[3].

Why It Matters

Cornelius O'Callaghan, 1st Viscount Lismore ranks in the top 0.73% of human entities by monthly Wikipedia readership (1 views/month, #7,300 of 1,000,298).[5]

FAQs

Who were Cornelius O'Callaghan, 1st Viscount Lismore's parents?

Cornelius O'Callaghan, 1st Viscount Lismore's father was Cornelius O'Callaghan, 1st Baron Lismore[6]. Cornelius O'Callaghan, 1st Viscount Lismore's mother was Frances Ponsonby[7].

Who was Cornelius O'Callaghan, 1st Viscount Lismore married to?

Cornelius O'Callaghan, 1st Viscount Lismore's spouses include Lady Eleanor Butler[8].

What did Cornelius O'Callaghan, 1st Viscount Lismore do for work?

Cornelius O'Callaghan, 1st Viscount Lismore worked as politician[4].

References

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

Direct Wikidata claims

  1. [16] ↑ . wikidata.org.
  2. [6] ↑ . wikidata.org.
  3. [7] ↑ . The Peerage. wikidata.org.
  4. [8] ↑ . Retrieved . wikidata.org.
  5. [17] ↑ . wikidata.org.
  6. [13] ↑ . wikidata.org.
  7. [14] ↑ . wikidata.org.
  8. [15] ↑ . wikidata.org.
  9. [9] ↑ . The Peerage. wikidata.org.
  10. [10] ↑ . The Peerage. wikidata.org.
  11. [11] ↑ . The Peerage. wikidata.org.
  12. [12] ↑ . The Peerage. wikidata.org.
  13. [18] ↑ . wikidata.org.
  14. [4] ↑ . Hansard 1803–2005. Retrieved . wikidata.org.
  15. [2] ↑ . The Peerage. Retrieved . wikidata.org.
  16. [3] ↑ . The Peerage. Retrieved . 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.

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
  6. [33] ↑ . Wikidata. wikidata.org. → on this site
  7. [34] ↑ . Wikidata. wikidata.org. → on this site
  8. [35] ↑ . Wikidata. wikidata.org. → on this site

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). Cornelius O'Callaghan, 1st Viscount Lismore. Retrieved May 3, 2026, from https://4ort.xyz/entity/cornelius-o-callaghan-1st-viscount-lismore
MLA “Cornelius O'Callaghan, 1st Viscount Lismore.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/cornelius-o-callaghan-1st-viscount-lismore.
BibTeX @misc{4ortxyz_cornelius-o-callaghan-1st-viscount-lismore_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Cornelius O'Callaghan, 1st Viscount Lismore}}, year = {2026}, url = {https://4ort.xyz/entity/cornelius-o-callaghan-1st-viscount-lismore}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Cornelius O'Callaghan, 1st Viscount Lismore — https://4ort.xyz/entity/cornelius-o-callaghan-1st-viscount-lismore (retrieved 2026-05-03)

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