Leonard Jaczewski

Polish-Russian explorer, geographer, geologist, cartographer, and mining engineer (1858–1916)
Person human Q4539854
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Leonard Jaczewski

Summary

Leonard Jaczewski is a human[1]. He was born in Wilków[2]. He was born on August 30, 1858[3]. He died in Saint Petersburg[4]. He died on April 20, 1916[5]. He worked as an explorer[6], geographer[7], geologist[8], mining engineer[9], and cartographer[10]. He ranks in the top 0.73% of human entities by monthly Wikipedia readership (1 views/month, #7,297 of 1,000,298).[11]

Key Facts

  • Leonard Jaczewski was born in Wilków[2].
  • Born in Konin[12], Leonard Jaczewski…
  • Leonard Jaczewski died in Saint Petersburg[4].
  • Leonard Jaczewski was born on August 30, 1858[3].
  • Leonard Jaczewski was born on August 30, 1858[13].
  • Leonard Jaczewski died on April 20, 1916[5].
  • Leonard Jaczewski died on May 3, 1916[14].
  • Leonard Jaczewski held citizenship in Russian Empire[15].
  • Leonard Jaczewski worked as an explorer[6].
  • Leonard Jaczewski worked as a geographer[7].
  • Leonard Jaczewski worked as a geologist[8].
  • Leonard Jaczewski's professions included mining engineer[9].
  • Leonard Jaczewski worked as a cartographer[10].
  • Leonard Jaczewski was employed by Ural State Mining University[16].
  • Leonard Jaczewski was employed by Dnipro University of Technology[17].
  • Leonard Jaczewski's education included a stint at Saint Petersburg Mining Institute[18].
  • Leonard Jaczewski received the Order of Saint Anna, 3rd class[19].
  • Leonard Jaczewski received the Order of Saint Stanislaus, 3rd class[20].
  • Leonard Jaczewski received the Order of St. Vladimir, 3rd class[21].
  • Leonard Jaczewski received the N. M. Przhevalsky Medal in Silver[22].
  • Leonard Jaczewski is recorded as male[23].
  • Leonard Jaczewski's instance of is recorded as human[24].
  • Leonard Jaczewski's coat of arms is recorded as Leliwa[25].
  • Leonard Jaczewski's Commons category is recorded as Leonard Jaczewski[26].
  • The cause of death was stomach cancer[27].

Body

Origins and Family

Recorded place of birth include Wilków[2], a village of Poland[28], in Poland[29] and Konin[12], a city with powiat rights in Poland[30], in Poland[31], founded in 1283[32]. Recorded date of birth include August 30, 1858[3].

Education

Leonard Jaczewski's education included a stint at Saint Petersburg Mining Institute[18].

Career and Affiliations

Recorded occupations include explorer[6], geographer[7], geologist[8], mining engineer[9], and cartographer[10]. Employers include Ural State Mining University[16], a university[33], in Russia[34], founded in 1914[35], headquartered in Q117231106[36] and Dnipro University of Technology[17], an institute of technology[37], in Ukraine[38], founded in 1899[39].

Recognition

Awards received include Order of Saint Anna, 3rd class[19], a grade of an order[40], in Russian Empire[41]; Order of Saint Stanislaus, 3rd class[20], a grade of an order[42], in Russian Empire[43]; Order of St. Vladimir, 3rd class[21], a grade of an order[44], in Russian Empire[45]; and N. M. Przhevalsky Medal in Silver[22], a class of award[46].

Death and Burial

Recorded date of death include April 20, 1916[5] and May 3, 1916[14]. Leonard Jaczewski passed away in Saint Petersburg[4]. The cause of death was stomach cancer[27].

Why It Matters

Leonard Jaczewski ranks in the top 0.73% of human entities by monthly Wikipedia readership (1 views/month, #7,297 of 1,000,298).[11] He has Wikipedia articles in 5 language editions, a strong signal of global cultural recognition.[47] He is known by 5 alternative names across languages and contexts.[48]

FAQs

Where was Leonard Jaczewski born?

Born in Wilków[2], Leonard Jaczewski…

Where did Leonard Jaczewski die?

Leonard Jaczewski passed away in Saint Petersburg[4].

What did Leonard Jaczewski do for work?

Leonard Jaczewski worked as explorer[6], geographer[7], geologist[8], mining engineer[9], and cartographer[10].

Where did Leonard Jaczewski go to school?

Leonard Jaczewski was educated at Saint Petersburg Mining Institute[18].

What awards did Leonard Jaczewski receive?

Honors received include Order of Saint Anna, 3rd class[19], Order of Saint Stanislaus, 3rd class[20], Order of St. Vladimir, 3rd class[21], and N. M. Przhevalsky Medal in Silver[22].

References

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

Direct Wikidata claims

  1. [2] . wikidata.org.
  2. [12] . wikidata.org.
  3. [4] . wikidata.org.
  4. [23] . IdRef. Retrieved . wikidata.org.
  5. [15] . wikidata.org.
  6. [24] . wikidata.org.
  7. [18] . wikidata.org.
  8. [6] . wikidata.org.
  9. [7] . wikidata.org.
  10. [8] . wikidata.org.
  11. [9] . Retrieved . wikidata.org.
  12. [10] . Retrieved . wikidata.org.
  13. [16] . wikidata.org.
  14. [17] . wikidata.org.
  15. [19] . wikidata.org.
  16. [20] . wikidata.org.
  17. [21] . wikidata.org.
  18. [22] . wikidata.org.
  19. [25] . Sejm-Wielki.pl. wikidata.org.
  20. [26] . wikidata.org.
  21. [27] . wikidata.org.
  22. [3] . wikidata.org.
  23. [13] . Integrated Authority File. Retrieved . wikidata.org.
  24. [5] . wikidata.org.
  25. [14] . Integrated Authority File. 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
  6. [33] . Wikidata. wikidata.org. → on this site
  7. [34] . Wikidata. wikidata.org. → on this site
  8. [35] . Wikidata. wikidata.org. → on this site
  9. [36] . Wikidata. wikidata.org. → on this site
  10. [37] . Wikidata. wikidata.org. → on this site
  11. [38] . Wikidata. wikidata.org. → on this site
  12. [39] . Wikidata. wikidata.org. → on this site
  13. [40] . Wikidata. wikidata.org. → on this site
  14. [41] . Wikidata. wikidata.org. → on this site
  15. [42] . Wikidata. wikidata.org. → on this site
  16. [43] . Wikidata. wikidata.org. → on this site
  17. [44] . Wikidata. wikidata.org. → on this site
  18. [45] . Wikidata. wikidata.org. → on this site
  19. [46] . 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. [47] . Wikidata sitelinks. wikidata.org.
  3. [48] . 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). Leonard Jaczewski. Retrieved April 10, 2026, from https://4ort.xyz/entity/leonard-jaczewski
MLA “Leonard Jaczewski.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/leonard-jaczewski.
BibTeX @misc{4ortxyz_leonard-jaczewski_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Leonard Jaczewski}}, year = {2026}, url = {https://4ort.xyz/entity/leonard-jaczewski}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Leonard Jaczewski — https://4ort.xyz/entity/leonard-jaczewski (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. 12d ago · Epìdosis · 2026-05-20 view diff on Wikidata ↗
    Given name Leonard
    Family name Jaczewski
    Employer
    Country of citizenship Russian Empire
    + 21 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/32086|batch #32086]]: import P21 and P106 from GND (28)"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.