Lionel Penrose

British psychiatrist, medical geneticist, mathematician, and chess theorist (*1898 – †1972)
Person human Q339375
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Lionel Penrose

Summary

Lionel Penrose is a human[1]. He was born in London[2]. He was born on June 11, 1898[3]. He died in London[4]. He died on May 12, 1972[5]. He worked as a mathematician[6], paramedic[7], psychiatrist[8], geneticist[9], and chess composer[10]. He ranks in the top 0.72% of human entities by monthly Wikipedia readership (543 views/month, #7,162 of 1,000,298).[11]

Key Facts

  • Born in London[2], Lionel Penrose…
  • Lionel Penrose passed away in London[4].
  • Lionel Penrose was born on June 11, 1898[3].
  • Lionel Penrose died on May 12, 1972[5].
  • Lionel Penrose's father was James Doyle Penrose[12].
  • Lionel Penrose's mother was Elizabeth Josephine Peckover[13].
  • Lionel Penrose was married to Margaret Leathes[14].
  • A child of Lionel Penrose was Roger Penrose[15].
  • A child of Lionel Penrose was Shirley Hodgson[16].
  • A child of Lionel Penrose was Jonathan Penrose[17].
  • A child of Lionel Penrose was Oliver Penrose[18].
  • Lionel Penrose held citizenship in United Kingdom[19].
  • Lionel Penrose's professions included mathematician[6].
  • Lionel Penrose worked as a paramedic[7].
  • Lionel Penrose worked as a psychiatrist[8].
  • Lionel Penrose worked as a geneticist[9].
  • Lionel Penrose's professions included chess composer[10].
  • Lionel Penrose's professions included pediatrician[20].
  • Lionel Penrose's field of work was pediatrics[21].
  • Lionel Penrose's field of work was psychiatry[22].
  • Lionel Penrose's field of work was human genetics[23].
  • Lionel Penrose's field of work was mathematics[24].
  • Lionel Penrose's field of work was chess[25].
  • Lionel Penrose held the position of professor[26].
  • Lionel Penrose was employed by University College London[27].

Body

Origins and Family

Born in London[2], Lionel Penrose… he was born on June 11, 1898[3]. His father was James Doyle Penrose[12]. His mother was Elizabeth Josephine Peckover[13].

Education

Educated at St John's College[28], a college of the University of Cambridge[29], in United Kingdom[30], founded in 1511[31]; Leighton Park School[32], a school[33], in United Kingdom[34], founded in 1890[35]; and The Downs, Malvern College Prep School[36], a school[37], in United Kingdom[38], founded in 1900[39].

Career and Affiliations

Recorded occupations include mathematician[6], paramedic[7], psychiatrist[8], geneticist[9], chess composer[10], and pediatrician[20]. Fields of work include pediatrics[21], a medical specialty[40]; psychiatry[22], a medical specialty[41]; human genetics[23], a field of study[42]; mathematics[24], an academic discipline[43]; and chess[25], a board game[44], founded in 0601[45]. Employers include University College London[27], a university college[46], in United Kingdom[47], founded in 1826[48], headquartered in UCL Main Building[49] and The Open University[50], a public university[51], in United Kingdom[52], founded in 1969[53]. Lionel Penrose held the position of professor[26].

Recognition

Awards received include Fellow of the Royal Society[54] and Albert Lasker Award for Basic Medical Research[55].

Personal Life

Lionel Penrose was married to Margaret Leathes[14]. Children include Roger Penrose[15], a mathematician[56], b. 1931[57], of United Kingdom[58], awarded the Fellow of the Royal Society[59], specialised in physics[60]; Shirley Hodgson[16], a geneticist[61], b. 1945[62], of United Kingdom[63], awarded the Fellow of the Royal College of Physicians of London[64]; Jonathan Penrose[17], a chess player[65], 1933–2021[66], of United Kingdom[67], awarded the Officer of the Order of the British Empire[68]; and Oliver Penrose[18], a mathematician[69], b. 1929[70], of United Kingdom[71], awarded the Fellow of the Royal Society[72], specialised in physics[73].

Death and Burial

Lionel Penrose died on May 12, 1972[5]. He passed away in London[4].

Works and Contributions

Things named for Lionel Penrose include Penrose triangle[74], an impossible object[75] and Penrose stairs[76], an impossible object[77].

Why It Matters

Lionel Penrose ranks in the top 0.72% of human entities by monthly Wikipedia readership (543 views/month, #7,162 of 1,000,298).[11] He has Wikipedia articles in 10 language editions, a strong signal of global cultural recognition.[78] He is known by 10 alternative names across languages and contexts.[79]

He is credited with the discovery of Penrose triangle[80], an impossible object[81] and Penrose stairs[82], an impossible object[83]. Entities named for him include Penrose triangle[74], an impossible object[75] and Penrose stairs[76], an impossible object[77].

FAQs

Where was Lionel Penrose born?

Lionel Penrose's place of birth was London[2].

Where did Lionel Penrose die?

Lionel Penrose passed away in London[4].

Who were Lionel Penrose's parents?

Lionel Penrose's father was James Doyle Penrose[12]. Lionel Penrose's mother was Elizabeth Josephine Peckover[13].

Who was Lionel Penrose married to?

Lionel Penrose's spouses include Margaret Leathes[14].

What did Lionel Penrose do for work?

Lionel Penrose worked as mathematician[6], paramedic[7], psychiatrist[8], geneticist[9], and chess composer[10].

Where did Lionel Penrose go to school?

Lionel Penrose was educated at St John's College[28], Leighton Park School[32], and The Downs, Malvern College Prep School[36].

What awards did Lionel Penrose receive?

Honors received include Fellow of the Royal Society[54] and Albert Lasker Award for Basic Medical Research[55].

What did Lionel Penrose discover?

Lionel Penrose is credited as discoverer of Penrose triangle[80] and Penrose stairs[82].

References

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

Direct Wikidata claims

  1. [2] . wikidata.org.
  2. [4] . wikidata.org.
  3. [12] . The Peerage. wikidata.org.
  4. [13] . The Peerage. wikidata.org.
  5. [14] . Q75653886. Retrieved . wikidata.org.
  6. [19] . wikidata.org.
  7. [26] . oxforddnb.com. oxforddnb.com. Provenance: wikidata.org.
  8. [15] . The Peerage. wikidata.org.
  9. [16] . The Peerage. wikidata.org.
  10. [17] . Q75653886. wikidata.org.
  11. [18] . The Peerage. wikidata.org.
  12. [28] . wikidata.org.
  13. [32] . wikidata.org.
  14. [36] . wikidata.org.
  15. [21] . Czech National Authority Database. Retrieved . wikidata.org.
  16. [22] . Czech National Authority Database. Retrieved . wikidata.org.
  17. [23] . Czech National Authority Database. Retrieved . wikidata.org.
  18. [24] . Czech National Authority Database. Retrieved . wikidata.org.
  19. [25] . Czech National Authority Database. Retrieved . wikidata.org.
  20. [6] . Czech National Authority Database. Retrieved . wikidata.org.
  21. [7] . wikidata.org.
  22. [8] . wikidata.org.
  23. [9] . wikidata.org.
  24. [10] . wikidata.org.
  25. [20] . Czech National Authority Database. Retrieved . wikidata.org.
  26. [27] . wikidata.org.
  27. [50] . oxforddnb.com. oxforddnb.com. Provenance: wikidata.org.
  28. [54] . wikidata.org.
  29. [55] . laskerfoundation.org. laskerfoundation.org. Provenance: wikidata.org.
  30. [3] . The Peerage. Retrieved . cs.isabart.org. Provenance: wikidata.org.
  31. [5] . The Peerage. Retrieved . cs.isabart.org. Provenance: wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [80] . wikidata.org. → on this site
  2. [82] . wikidata.org. → on this site
  3. [74] . wikidata.org. → on this site
  4. [76] . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [56] . Wikidata. wikidata.org. → on this site
  2. [57] . Wikidata. wikidata.org. → on this site
  3. [58] . Wikidata. wikidata.org. → on this site
  4. [59] . Wikidata. wikidata.org. → on this site
  5. [60] . Wikidata. wikidata.org. → on this site
  6. [61] . Wikidata. wikidata.org. → on this site
  7. [62] . Wikidata. wikidata.org. → on this site
  8. [63] . Wikidata. wikidata.org. → on this site
  9. [64] . Wikidata. wikidata.org. → on this site
  10. [65] . Wikidata. wikidata.org. → on this site
  11. [66] . Wikidata. wikidata.org. → on this site
  12. [67] . Wikidata. wikidata.org. → on this site
  13. [68] . Wikidata. wikidata.org. → on this site
  14. [69] . Wikidata. wikidata.org. → on this site
  15. [70] . Wikidata. wikidata.org. → on this site
  16. [71] . Wikidata. wikidata.org. → on this site
  17. [72] . Wikidata. wikidata.org. → on this site
  18. [73] . Wikidata. wikidata.org. → on this site
  19. [29] . Wikidata. wikidata.org. → on this site
  20. [30] . Wikidata. wikidata.org. → on this site
  21. [31] . Wikidata. wikidata.org. → on this site
  22. [33] . Wikidata. wikidata.org. → on this site
  23. [34] . Wikidata. wikidata.org. → on this site
  24. [35] . Wikidata. wikidata.org. → on this site
  25. [37] . Wikidata. wikidata.org. → on this site
  26. [38] . Wikidata. wikidata.org. → on this site
  27. [39] . Wikidata. wikidata.org. → on this site
  28. [40] . Wikidata. wikidata.org. → on this site
  29. [41] . Wikidata. wikidata.org. → on this site
  30. [42] . Wikidata. wikidata.org. → on this site
  31. [43] . Wikidata. wikidata.org. → on this site
  32. [44] . Wikidata. wikidata.org. → on this site
  33. [45] . Wikidata. wikidata.org. → on this site
  34. [46] . Wikidata. wikidata.org. → on this site
  35. [47] . Wikidata. wikidata.org. → on this site
  36. [48] . Wikidata. wikidata.org. → on this site
  37. [49] . Wikidata. wikidata.org. → on this site
  38. [51] . Wikidata. wikidata.org. → on this site
  39. [52] . Wikidata. wikidata.org. → on this site
  40. [53] . Wikidata. wikidata.org. → on this site
  41. [81] . Wikidata. wikidata.org. → on this site
  42. [83] . Wikidata. wikidata.org. → on this site
  43. [75] . Wikidata. wikidata.org. → on this site
  44. [77] . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [11] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [78] . Wikidata sitelinks. wikidata.org.
  3. [79] . Wikidata aliases. 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). Lionel Penrose. Retrieved April 10, 2026, from https://4ort.xyz/entity/lionel-penrose
MLA “Lionel Penrose.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/lionel-penrose.
BibTeX @misc{4ortxyz_lionel-penrose_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Lionel Penrose}}, year = {2026}, url = {https://4ort.xyz/entity/lionel-penrose}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Lionel Penrose — https://4ort.xyz/entity/lionel-penrose (retrieved 2026-04-10)

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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 14d ago · Epìdosis · 2026-05-20 view diff on Wikidata ↗
    Given name Lionel
    Field of work pediatrics, psychiatry, human genetics +2
    Instance of human
    Sex or gender male
    + 27 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/32084|batch #32084]]: import P21 and P106 from GND (26)"
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