Leo Polak

Dutch philosopher and university professor (1880–1941)
Person human Q1818707
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Summary

Leo Polak was born on January 6, 1880[1], in Steenwijk[2]. He died on December 9, 1941[3], in Sachsenhausen concentration camp[4]. He worked as a philosopher[5], university teacher[6], and jurist[7]. He is known by 3 alternative names across languages and contexts.[8]

Key Facts

  • Spouse: Henriette Antoinette Polak-Schwarz[9]
  • Country of citizenship: Kingdom of the Netherlands[10]
  • Native language: Dutch[11]
  • Field of work: philosophy of law[12], ethics[13], sexual ethics[14]
  • Employer: University of Groningen[15], Leiden University[16]
  • Sex or gender: male[17]
  • Commons category: Leo Polak[18]
  • Archives at: Allard Pierson[19]
  • Family name: Polak[20]
  • Given name: Leo[21], Leonard[22]
  • Languages spoken, written or signed: Dutch[23]
  • Place of detention: Sachsenhausen concentration camp[24]
  • Copyright status as a creator: copyrights on works have expired[25]

FAQs

Where was Leo Polak born?

Leo Polak's place of birth was Steenwijk[2].

Where did Leo Polak die?

Leo Polak passed away in Sachsenhausen concentration camp[4].

Who was Leo Polak married to?

Leo Polak's spouses include Henriette Antoinette Polak-Schwarz[9].

What did Leo Polak do for work?

Leo Polak worked as a philosopher[5], university teacher[6], and jurist[7].

References

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

Direct Wikidata claims

  1. [2] ↑ . Catalogus Professorum Academiae Groninganae. Retrieved . wikidata.org.
  2. [4] ↑ . Catalogus Professorum Academiae Groninganae. Retrieved . wikidata.org.
  3. [17] ↑ . Leidse Hoogleraren. Retrieved . wikidata.org.
  4. [9] ↑ . wikidata.org.
  5. [10] ↑ . Leidse Hoogleraren. Retrieved . wikidata.org.
  6. [12] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  7. [13] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  8. [14] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  9. [11] ↑ . wikidata.org.
  10. [5] ↑ . wikidata.org.
  11. [6] ↑ . Leidse Hoogleraren. Retrieved . wikidata.org.
  12. [7] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  13. [15] ↑ . wikidata.org.
  14. [16] ↑ . wikidata.org.
  15. [18] ↑ . wikidata.org.
  16. [19] ↑ . pid.uba.uva.nl. Retrieved . pid.uba.uva.nl. Provenance: wikidata.org.
  17. [1] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  18. [3] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  19. [20] ↑ . Leidse Hoogleraren. Retrieved . wikidata.org.
  20. [21] ↑ . wikidata.org.
  21. [22] ↑ . Leidse Hoogleraren. Retrieved . wikidata.org.
  22. [23] ↑ . wikidata.org.
  23. [24] ↑ . wikidata.org.
  24. [25] ↑ . Retrieved . wikidata.org.

Aggregate / graph-position facts

  1. [8] ↑ . Wikidata aliases. wikidata.org.

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APA 4ort.xyz Knowledge Graph. (2026). Leo Polak. Retrieved October 16, 2026, from https://4ort.xyz/entity/leo-polak
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BibTeX @misc{4ortxyz_leo-polak_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Leo Polak}}, year = {2026}, url = {https://4ort.xyz/entity/leo-polak}, note = {Accessed: 2026-10-16}}
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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. 13w ago · MariuszRokin · 2026-07-15 view diff on Wikidata ↗
    Vatican library vcba id → 495/245099
    "/* wbcreateclaim-create:1| */ Vatican library vcba id: 495/245099, [[:toollabs:quickstatements/#/batch/260994|batch #260994]]"
  2. 21w ago · Epìdosis · 2026-05-19 view diff on Wikidata ↗
    Place of birth → Steenwijk
    Library of congress authority id → no00042902
    Google knowledge graph id → /g/1224mzhy
    Date of birth → +1880-01-06T00:00:00Z
    + 50 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/32074|batch #32074]]: import P21 and P106 from GND (21)"
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