Henri Brocard

French mathematician and meteorologist (1845-1922)
Person human Q572312
Henri Brocard
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Summary

Henri Brocard was born on May 12, 1845[1], in Vignot[2]. He died on January 16, 1922[3], in Kensington[4]. He worked as a mathematician[5], speleologist[6], meteorologist[7], military engineer[8], and engineer[9]. He ranks in the top 0.73% of human entities by monthly Wikipedia readership (81 views/month, #7,289 of 1,000,298).[10]

Key Facts

  • Place of death: Bar-le-Duc[11]
  • Place of burial: Vignot cemetery[12]
  • Country of citizenship: France[13]
  • Field of work: geometry[14]
  • Employer: French Armed Forces[15]
  • Educated at: Lycée Thiers[16], École polytechnique[17], École d'application de l'artillerie et du génie in Metz[18]
  • Notable work: Brocard's problem[19], Brocard points[20], Brocard's conjecture[21], Brocard circle[22], Brocard triangle[23], Brocard inellipse[24], Brocard axis[25]
  • Award received: Officer of the Legion of Honour[26], Knight of the Legion of Honour[27], Knight of the French Order of Academic Palms[28]
  • Member of: Association française pour l'avancement des sciences[29], Meteorological Society of France[30], Montpellier Academy of Sciences and Letters[31], Academy of Sciences of Lisbon[32], Société Mathématique de France[33]
  • Sex or gender: male[34]
  • Commons category: Henri Brocard[35]
  • Military, police or special rank: lieutenant colonel[36]
  • Residence: France[37]
  • Participated in conflict: Franco-Prussian War[38]
  • Family name: Brocard[39]
  • Given name: Henri[40], Pierre[41], René[42], Jean-Baptiste[43]
  • Languages spoken, written or signed: French[44]
  • Birth name: Pierre René Jean Baptiste Henri Brocard[45]
  • Name in native language: Henri Brocard[46]

Body

Works and Contributions

Things named for Henri Brocard include Brocard points[47], a triangle center[48]; Brocard's conjecture[49], a conjecture[50]; Brocard circle[51], a circle[52]; and Brocard triangle[53].

Why It Matters

Henri Brocard has Wikipedia articles in 17 language editions, a strong signal of global cultural recognition.[54] He is known by 23 alternative names across languages and contexts.[55]

Entities named for him include Brocard points[47], a triangle center[48]; Brocard's conjecture[49], a conjecture[50]; Brocard circle[51], a circle[52]; and Brocard triangle[53].

FAQs

Where was Henri Brocard born?

Henri Brocard was born in Vignot[2].

Where did Henri Brocard die?

Henri Brocard died in Kensington[4].

What did Henri Brocard do for work?

Henri Brocard worked as a mathematician[5], speleologist[6], meteorologist[7], military engineer[8], and engineer[9].

Where did Henri Brocard go to school?

Henri Brocard was educated at Lycée Thiers[16], École polytechnique[17], and École d'application de l'artillerie et du génie in Metz[18].

What awards did Henri Brocard receive?

Honors received include Officer of the Legion of Honour[26], Knight of the Legion of Honour[27], and Knight of the French Order of Academic Palms[28].

References

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

Direct Wikidata claims

  1. [2] ↑ . MacTutor History of Mathematics archive. wikidata.org.
  2. [4] ↑ . Montpellier Academy of Sciences and Letters. rhpst.huma-num.fr. Provenance: wikidata.org.
  3. [11] ↑ . MacTutor History of Mathematics archive. books.google.cat. Provenance: wikidata.org.
  4. [34] ↑ . BnF authorities. Retrieved . wikidata.org.
  5. [13] ↑ . wikidata.org.
  6. [16] ↑ . Q107214470. wikidata.org.
  7. [17] ↑ . Q107214470. wikidata.org.
  8. [18] ↑ . Q107214470. wikidata.org.
  9. [14] ↑ . wikidata.org.
  10. [5] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  11. [6] ↑ . wikidata.org.
  12. [7] ↑ . wikidata.org.
  13. [8] ↑ . wikidata.org.
  14. [9] ↑ . wikidata.org.
  15. [15] ↑ . MacTutor History of Mathematics archive. ac-sciences-lettres-montpellier.fr. Provenance: wikidata.org.
  16. [12] ↑ . MacTutor History of Mathematics archive. wikidata.org.
  17. [26] ↑ . Léonore database. leonore.archives-nationales.culture.gouv.fr. Provenance: wikidata.org.
  18. [27] ↑ . Léonore database. wikidata.org.
  19. [28] ↑ . Léonore database. wikidata.org.
  20. [35] ↑ . wikidata.org.
  21. [36] ↑ . ac-sciences-lettres-montpellier.fr. ac-sciences-lettres-montpellier.fr. Provenance: wikidata.org.
  22. [29] ↑ . Q107214470. wikidata.org.
  23. [30] ↑ . Q107214470. wikidata.org.
  24. [31] ↑ . Q107214470. wikidata.org.
  25. [32] ↑ . wikidata.org.
  26. [33] ↑ . wikidata.org.
  27. [37] ↑ . wikidata.org.
  28. [1] ↑ . BnF authorities. Retrieved . wikidata.org.
  29. [3] ↑ . BnF authorities. Retrieved . wikidata.org.
  30. [38] ↑ . Q107214470. wikidata.org.
  31. [39] ↑ . wikidata.org.
  32. [40] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  33. [41] ↑ . wikidata.org.
  34. [42] ↑ . wikidata.org.
  35. [43] ↑ . wikidata.org.
  36. [19] ↑ . wikidata.org.
  37. [20] ↑ . wikidata.org.
  38. [21] ↑ . wikidata.org.
  39. [22] ↑ . wikidata.org.
  40. [23] ↑ . wikidata.org.
  41. [24] ↑ . wikidata.org.
  42. [25] ↑ . wikidata.org.
  43. [44] ↑ . BnF authorities. Retrieved . wikidata.org.
  44. [45] ↑ . MacTutor History of Mathematics archive. wikidata.org.
  45. [46] ↑ . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [47] ↑ . wikidata.org. → on this site
  2. [49] ↑ . wikidata.org. → on this site
  3. [51] ↑ . wikidata.org. → on this site
  4. [53] ↑ . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [48] ↑ . Wikidata. wikidata.org. → on this site
  2. [50] ↑ . Wikidata. wikidata.org. → on this site
  3. [52] ↑ . Wikidata. wikidata.org. → on this site

Aggregate / graph-position facts

  1. [10] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [54] ↑ . Wikidata sitelinks. wikidata.org.
  3. [55] ↑ . Wikidata aliases. wikidata.org.

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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). Henri Brocard. Retrieved October 18, 2026, from https://4ort.xyz/entity/henri-brocard-q572312
MLA “Henri Brocard.” 4ort.xyz Knowledge Graph, 4ort.xyz, 18 Oct. 2026, https://4ort.xyz/entity/henri-brocard-q572312.
BibTeX @misc{4ortxyz_henri-brocard-q572312_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Henri Brocard}}, year = {2026}, url = {https://4ort.xyz/entity/henri-brocard-q572312}, note = {Accessed: 2026-10-18}}
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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. 9d ago · AntiDerangedKhanTengriAction · 2026-10-11 view diff on Wikidata ↗
    Ddb person (gnd) id → 1089113269, 1055117865
    Claims rich → —
    "/* wbcreateclaim-create:1| */ Ddb person (gnd) id: 1055117865, [[:toollabs:quickstatements/#/batch/290271|batch #290271]]"
  2. 21d ago · Printstream · 2026-09-29 view diff on Wikidata ↗
    Wikipedia languages → ['ar', 'arz', 'ca', 'commons', 'de', 'en', 'es', 'fa', 'fi', 'fr', 'ht', 'it', '
    Ddb person (gnd) id → 1089113269, 1055117865
    Claims rich → —
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/56946|batch #56946]]: remove GND subproperty for deprecated IDs resulting in a 404"
  3. 5w ago · StorchPDF · 2026-09-14 view diff on Wikidata ↗
    Ddb person (gnd) id → 1089113269, 1055117865
    "/* wbcreateclaim-create:1| */ Ddb person (gnd) id: 1055117865, [[:toollabs:quickstatements/#/batch/273299|batch #273299]]"
  4. 21w ago · Epìdosis · 2026-05-21 view diff on Wikidata ↗
    Military, police or special rank → lieutenant colonel
    Notable work → Brocard's problem, Brocard points, Brocard's conjecture +4
    Given name → Henri, Pierre, René +1
    Field of work → geometry
    + 26 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/32118|batch #32118]]: import P21 and P106 from GND (31)"
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