Karl Martin

Dutch geologist (1851-1942)
Person human Q72782
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Karl Martin

Summary

Karl Martin is a human[1]. Born in Jever[2], he… he was born on +1851-01-01T00:00:00Z[3]. He passed away in Leiden[4]. He died on +1942-01-01T00:00:00Z[5]. He worked as a geologist[6], paleontologist[7], university teacher[8], explorer[9], and map drawer[10]. He ranks in the top 0.73% of human entities by monthly Wikipedia readership (2 views/month, #7,299 of 1,000,298).[11]

Key Facts

  • Karl Martin's place of birth was Jever[2].
  • Born in Oldenburg[12], Karl Martin…
  • Karl Martin died in Leiden[4].
  • Karl Martin was born on +1851-01-01T00:00:00Z[3].
  • Karl Martin was born on +1851-11-24T00:00:00Z[13].
  • Karl Martin died on +1942-01-01T00:00:00Z[5].
  • Karl Martin died on +1942-11-14T00:00:00Z[14].
  • Karl Martin was married to Hillegonda Martin-Icke[15].
  • A child of Karl Martin was Hans Martin[16].
  • Karl Martin held citizenship in German Reich[17].
  • Karl Martin held citizenship in Kingdom of the Netherlands[18].
  • German was Karl Martin's native language[19].
  • Karl Martin worked as a geologist[6].
  • Karl Martin worked as a paleontologist[7].
  • Karl Martin's professions included university teacher[8].
  • Karl Martin's professions included explorer[9].
  • Karl Martin's professions included map drawer[10].
  • Karl Martin held the position of rector magnificus of Leiden University[20].
  • Among Karl Martin's employers was Leiden University[21].
  • Among Karl Martin's employers was Leiden University[22].
  • Among Karl Martin's employers was Rijksmuseum van Geologie en Mineralogie[23].
  • Karl Martin was educated at University of Göttingen[24].
  • A notable student of Karl Martin was Gustaaf Adolf Frederik Molengraaff[25].
  • A notable student of Karl Martin was Isaäk Martinus van der Vlerk[26].
  • A notable student of Karl Martin was Ulbo de Sitter[27].

Body

Origins and Family

Recorded place of birth include Jever[2], an urban municipality in Germany[28], in Germany[29] and Oldenburg[12], a college town[30], in Germany[31]. Recorded date of birth include +1851-01-01T00:00:00Z[3] and +1851-11-24T00:00:00Z[13]. German was Karl Martin's native language[19].

Education

Karl Martin was educated at University of Göttingen[24]. He earned the academic degree of doctorate[32].

Career and Affiliations

Recorded occupations include geologist[6], paleontologist[7], university teacher[8], explorer[9], and map drawer[10]. Employers include Leiden University[21], a university[33], in Netherlands[34], founded in 1575[35], headquartered in Leiden[36] and Rijksmuseum van Geologie en Mineralogie[23], a national museum[37], in Netherlands[38], founded in 1878[39]. Karl Martin held the position of rector magnificus of Leiden University[20]. Notable students include Gustaaf Adolf Frederik Molengraaff[25], a geologist[40], 1860–1942[41], of Kingdom of the Netherlands[42], awarded the Wollaston Medal[43]; Isaäk Martinus van der Vlerk[26], a geologist[44], 1892–1974[45], of Kingdom of the Netherlands[46], awarded the Van Waterschoot Van Der Gracht Medal[47]; Ulbo de Sitter[27], a geologist[48], 1902–1980[49], of Kingdom of the Netherlands[50], awarded the Van Waterschoot Van Der Gracht Medal[51], specialised in structural geology[52]; and Johannes Herman Frederik Umbgrove[53], a geologist[54], 1899–1954[55], of Kingdom of the Netherlands[56].

Personal Life

Among Karl Martin's spouses was Hillegonda Martin-Icke[15]. A child of him was Hans Martin[16].

Death and Burial

Recorded date of death include +1942-01-01T00:00:00Z[5] and +1942-11-14T00:00:00Z[14]. Karl Martin died in Leiden[4].

Why It Matters

Karl Martin ranks in the top 0.73% of human entities by monthly Wikipedia readership (2 views/month, #7,299 of 1,000,298).[11] He has Wikipedia articles in 8 language editions, a strong signal of global cultural recognition.[57] He is known by 25 alternative names across languages and contexts.[58]

FAQs

Where was Karl Martin born?

Karl Martin was born in Jever[2].

Where did Karl Martin die?

Karl Martin passed away in Leiden[4].

Who was Karl Martin married to?

Karl Martin's spouses include Hillegonda Martin-Icke[15].

What did Karl Martin do for work?

Karl Martin worked as geologist[6], paleontologist[7], university teacher[8], explorer[9], and map drawer[10].

Where did Karl Martin go to school?

Karl Martin was educated at University of Göttingen[24].

References

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

Direct Wikidata claims

  1. [2] . wikidata.org.
  2. [12] . Onze Hoogleeraren. wikidata.org.
  3. [4] . wikidata.org.
  4. [15] . erfgoedleiden.nl. erfgoedleiden.nl. Provenance: wikidata.org.
  5. [17] . wikidata.org.
  6. [18] . wikidata.org.
  7. [20] . wikidata.org.
  8. [16] . wikidata.org.
  9. [24] . wikidata.org.
  10. [19] . wikidata.org.
  11. [6] . wikidata.org.
  12. [7] . wikidata.org.
  13. [8] . Leidse Hoogleraren. Retrieved . wikidata.org.
  14. [9] . wikidata.org.
  15. [10] . Repertorium van Nederlandse kaartmakers. Retrieved . wikidata.org.
  16. [21] . Onze Hoogleeraren. wikidata.org.
  17. [22] . Leidse Hoogleraren. Retrieved . wikidata.org.
  18. [23] . Pioneers and Milestones of Indonesian Geology 3. Paleontologists and Other Specialists. wikidata.org.
  19. [32] . Onze Hoogleeraren. wikidata.org.
  20. [3] . Integrated Authority File. Retrieved . wikidata.org.
  21. [13] . Leidse Hoogleraren. Retrieved . wikidata.org.
  22. [5] . Integrated Authority File. Retrieved . wikidata.org.
  23. [14] . Leidse Hoogleraren. Retrieved . wikidata.org.
  24. [25] . Pioneers and Milestones of Indonesian Geology 3. Paleontologists and Other Specialists. wikidata.org.
  25. [26] . Pioneers and Milestones of Indonesian Geology 3. Paleontologists and Other Specialists. wikidata.org.
  26. [27] . Pioneers and Milestones of Indonesian Geology 3. Paleontologists and Other Specialists. wikidata.org.
  27. [53] . Pioneers and Milestones of Indonesian Geology 3. Paleontologists and Other Specialists. 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. [33] . Wikidata. wikidata.org. → on this site
  6. [34] . Wikidata. wikidata.org. → on this site
  7. [35] . Wikidata. wikidata.org. → on this site
  8. [36] . Wikidata. wikidata.org. → on this site
  9. [37] . Wikidata. wikidata.org. → on this site
  10. [38] . Wikidata. wikidata.org. → on this site
  11. [39] . Wikidata. wikidata.org. → on this site
  12. [40] . Wikidata. wikidata.org. → on this site
  13. [41] . Wikidata. wikidata.org. → on this site
  14. [42] . Wikidata. wikidata.org. → on this site
  15. [43] . Wikidata. wikidata.org. → on this site
  16. [44] . Wikidata. wikidata.org. → on this site
  17. [45] . Wikidata. wikidata.org. → on this site
  18. [46] . Wikidata. wikidata.org. → on this site
  19. [47] . Wikidata. wikidata.org. → on this site
  20. [48] . Wikidata. wikidata.org. → on this site
  21. [49] . Wikidata. wikidata.org. → on this site
  22. [50] . Wikidata. wikidata.org. → on this site
  23. [51] . Wikidata. wikidata.org. → on this site
  24. [52] . Wikidata. wikidata.org. → on this site
  25. [54] . Wikidata. wikidata.org. → on this site
  26. [55] . Wikidata. wikidata.org. → on this site
  27. [56] . 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. [57] . Wikidata sitelinks. wikidata.org.
  3. [58] . 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). Karl Martin. Retrieved April 10, 2026, from https://4ort.xyz/entity/karl-martin
MLA “Karl Martin.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/karl-martin.
BibTeX @misc{4ortxyz_karl-martin_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Karl Martin}}, year = {2026}, url = {https://4ort.xyz/entity/karl-martin}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Karl Martin — https://4ort.xyz/entity/karl-martin (retrieved 2026-04-10)

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