Johannes Praetorius

German astronomer and mathematician (1537-1616)
Person human Q91661
Johannes Praetorius
Wolfgang Philipp Kilian · Public Domain · Wikimedia
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Johannes Praetorius

Summary

Johannes Praetorius is a human[1]. His place of birth was Jáchymov[2]. He was born on January 1, 1537[3]. He died in Altdorf bei Nürnberg[4]. He died on October 27, 1616[5]. He worked as a mathematician[6], astronomer[7], university teacher[8], and physicist[9]. He ranks in the top 0.73% of human entities by monthly Wikipedia readership (5 views/month, #7,297 of 1,000,298).[10]

Key Facts

  • Born in Jáchymov[2], Johannes Praetorius…
  • Johannes Praetorius died in Altdorf bei Nürnberg[4].
  • Johannes Praetorius was born on January 1, 1537[3].
  • Johannes Praetorius died on October 27, 1616[5].
  • Johannes Praetorius held citizenship in Germany[11].
  • Johannes Praetorius worked as a mathematician[6].
  • Johannes Praetorius's professions included astronomer[7].
  • Johannes Praetorius's professions included university teacher[8].
  • Johannes Praetorius worked as a physicist[9].
  • Johannes Praetorius's field of work was astronomy[12].
  • Johannes Praetorius was employed by University of Altdorf[13].
  • Among Johannes Praetorius's employers was University of Wittenberg[14].
  • Johannes Praetorius was educated at University of Wittenberg[15].
  • Johannes Praetorius was educated at Martin Luther University Halle-Wittenberg[16].
  • A notable student of Johannes Praetorius was Petrus Saxonius[17].
  • A notable student of Johannes Praetorius was Daniel Schwenter[18].
  • A notable student of Johannes Praetorius was Johann Odontius[19].
  • Johannes Praetorius is recorded as male[20].
  • Johannes Praetorius's instance of is recorded as human[21].
  • Johannes Praetorius's Commons category is recorded as Johannes Praetorius[22].
  • Johannes Praetorius's archives at is recorded as Bavarian State Library[23].
  • Johannes Praetorius's family name is recorded as Praetorius[24].
  • Johannes Praetorius's given name is recorded as Johannes[25].
  • Johannes Praetorius studied under Caspar Peucer[26].
  • Johannes Praetorius studied under Sebastian Theodoricus[27].

Body

Origins and Family

Born in Jáchymov[2], Johannes Praetorius… he was born on January 1, 1537[3].

Education

Educated at University of Wittenberg[15], a university[28], in Holy Roman Empire[29], founded in 1502[30], headquartered in Lutherstadt Wittenberg[31] and Martin Luther University Halle-Wittenberg[16], a public university[32], in Germany[33], founded in 1502[34], headquartered in Halle (Saale)[35]. Studied under Caspar Peucer[26], a historian[36], 1525–1602[37], specialised in astronomy[38] and Sebastian Theodoricus[27], a mathematician[39], 1521–1574[40], of Germany[41].

Career and Affiliations

Recorded occupations include mathematician[6], astronomer[7], university teacher[8], and physicist[9]. Johannes Praetorius's field of work was astronomy[12]. Employers include University of Altdorf[13], a university[42], in Germany[43], founded in 1578[44], headquartered in Altdorf bei Nürnberg[45] and University of Wittenberg[14], a university[46], in Holy Roman Empire[47], founded in 1502[48], headquartered in Lutherstadt Wittenberg[49]. Notable students include Petrus Saxonius[17], a mathematician[50], 1591–1625[51], of Germany[52]; Daniel Schwenter[18], a mathematician[53], 1585–1636[54], of Germany[55]; and Johann Odontius[19], a mathematician[56], 1580–1626[57].

Death and Burial

Johannes Praetorius died on October 27, 1616[5]. He passed away in Altdorf bei Nürnberg[4].

Why It Matters

Johannes Praetorius ranks in the top 0.73% of human entities by monthly Wikipedia readership (5 views/month, #7,297 of 1,000,298).[10] He has Wikipedia articles in 9 language editions, a strong signal of global cultural recognition.[58] He is known by 10 alternative names across languages and contexts.[59]

FAQs

Where was Johannes Praetorius born?

Johannes Praetorius was born in Jáchymov[2].

Where did Johannes Praetorius die?

Johannes Praetorius died in Altdorf bei Nürnberg[4].

What did Johannes Praetorius do for work?

Johannes Praetorius worked as mathematician[6], astronomer[7], university teacher[8], and physicist[9].

Where did Johannes Praetorius go to school?

Johannes Praetorius was educated at University of Wittenberg[15] and Martin Luther University Halle-Wittenberg[16].

References

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

Direct Wikidata claims

  1. [2] . The Fine Art Archive. Retrieved . cs.isabart.org. Provenance: wikidata.org.
  2. [4] . wikidata.org.
  3. [20] . Integrated Authority File. Retrieved . wikidata.org.
  4. [11] . wikidata.org.
  5. [21] . wikidata.org.
  6. [15] . wikidata.org.
  7. [16] . Mathematics Genealogy Project. wikidata.org.
  8. [12] . wikidata.org.
  9. [6] . The Fine Art Archive. Retrieved . cs.isabart.org. Provenance: wikidata.org.
  10. [7] . The Fine Art Archive. Retrieved . cs.isabart.org. Provenance: wikidata.org.
  11. [8] . wikidata.org.
  12. [9] . Retrieved . wikidata.org.
  13. [13] . wikidata.org.
  14. [14] . Retrieved . wikidata.org.
  15. [22] . wikidata.org.
  16. [23] . kalliope-verbund.info. kalliope-verbund.info. Provenance: wikidata.org.
  17. [3] . wikidata.org.
  18. [5] . SNAC. Retrieved . cs.isabart.org. Provenance: wikidata.org.
  19. [24] . wikidata.org.
  20. [25] . wikidata.org.
  21. [17] . Mathematics Genealogy Project. wikidata.org.
  22. [18] . Mathematics Genealogy Project. wikidata.org.
  23. [19] . Mathematics Genealogy Project. wikidata.org.
  24. [26] . Mathematics Genealogy Project. wikidata.org.
  25. [27] . Mathematics Genealogy Project. 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. [42] . Wikidata. wikidata.org. → on this site
  10. [43] . Wikidata. wikidata.org. → on this site
  11. [44] . Wikidata. wikidata.org. → on this site
  12. [45] . Wikidata. wikidata.org. → on this site
  13. [46] . Wikidata. wikidata.org. → on this site
  14. [47] . Wikidata. wikidata.org. → on this site
  15. [48] . Wikidata. wikidata.org. → on this site
  16. [49] . Wikidata. wikidata.org. → on this site
  17. [50] . Wikidata. wikidata.org. → on this site
  18. [51] . Wikidata. wikidata.org. → on this site
  19. [52] . Wikidata. wikidata.org. → on this site
  20. [53] . Wikidata. wikidata.org. → on this site
  21. [54] . Wikidata. wikidata.org. → on this site
  22. [55] . Wikidata. wikidata.org. → on this site
  23. [56] . Wikidata. wikidata.org. → on this site
  24. [57] . Wikidata. wikidata.org. → on this site
  25. [36] . Wikidata. wikidata.org. → on this site
  26. [37] . Wikidata. wikidata.org. → on this site
  27. [38] . Wikidata. wikidata.org. → on this site
  28. [39] . Wikidata. wikidata.org. → on this site
  29. [40] . Wikidata. wikidata.org. → on this site
  30. [41] . Wikidata. wikidata.org. → on this site

Class ancestry

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

Aggregate / graph-position facts

  1. [10] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [58] . Wikidata sitelinks. wikidata.org.
  3. [59] . 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). Johannes Praetorius. Retrieved April 11, 2026, from https://4ort.xyz/entity/johannes-praetorius-q91661-2
MLA “Johannes Praetorius.” 4ort.xyz Knowledge Graph, 4ort.xyz, 11 Apr. 2026, https://4ort.xyz/entity/johannes-praetorius-q91661-2.
BibTeX @misc{4ortxyz_johannes-praetorius-q91661-2_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Johannes Praetorius}}, year = {2026}, url = {https://4ort.xyz/entity/johannes-praetorius-q91661-2}, note = {Accessed: 2026-04-11}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Johannes Praetorius — https://4ort.xyz/entity/johannes-praetorius-q91661-2 (retrieved 2026-04-11)

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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. 6w ago · Epìdosis · 2026-05-13 view diff on Wikidata ↗
    On focus list of wikimedia project WikiProject PCC Wikidata Pilot/Smithsonian Libraries Dibner Library portraits
    Country of citizenship Germany
    Student Petrus Saxonius, Daniel Schwenter, Johann Odontius
    Languages spoken, written or signed German
    + 22 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/30853|batch #30853]]: match CERL IDs on the basis of GND (8)"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.