Adam Freytag

Polish military engineer
Person human Q349402
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Summary

Adam Freytag was born on 1588[1] in Toruń[2]. He died on January 1, 1650[3], in Kėdainiai[4]. He worked as a military engineer[5], professor[6], mathematician[7], engineer[8], and general contractor[9]. He ranks in the top 0.73% of human entities by monthly Wikipedia readership (24 views/month, #7,300 of 1,000,298).[10]

Key Facts

  • Date of birth: January 1, 1602[11], January 1, 1608[12]
  • Date of death: January 1, 1664[13]
  • Place of burial: Kėdainiai[14]
  • Country of citizenship: Polish–Lithuanian Commonwealth[15]
  • Occupation: physician[16], teacher[17]
  • Field of work: mathematics[18], medicine[19], military building[20], fortress[21], fortification[22]
  • Position held: teacher[23]
  • Employer: Kėdainiai Bright Gymnasium[24]
  • Educated at: Leiden University[25]
  • Sex or gender: male[26]
  • Commons category: Adam Freytag[27]
  • Residence: Kėdainiai[28]
  • Family name: Freytag[29], Freitag[30]
  • Given name: Adam[31]
  • Work location: Kėdainiai[32], Toruń[33], Leiden[34], Frankfurt (Oder)[35], Leipzig[36]
  • Described by source: Allgemeine Deutsche Biographie[37], Polish Biographical Dictionary[38]
  • Languages spoken, written or signed: German[39], Latin[40]

Why It Matters

Adam Freytag is known by 20 alternative names across languages and contexts.[41]

FAQs

Where was Adam Freytag born?

Adam Freytag's place of birth was Toruń[2].

Where did Adam Freytag die?

Adam Freytag died in Kėdainiai[4].

What did Adam Freytag do for work?

Adam Freytag worked as a military engineer[5], professor[6], mathematician[7], engineer[8], and general contractor[9].

Where did Adam Freytag go to school?

Adam Freytag was educated at Leiden University[25].

References

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

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [26] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  4. [15] ↑ . wikidata.org.
  5. [23] ↑ . wikidata.org.
  6. [25] ↑ . wikidata.org.
  7. [18] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  8. [19] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  9. [20] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  10. [21] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  11. [22] ↑ . wikidata.org.
  12. [5] ↑ . wikidata.org.
  13. [6] ↑ . wikidata.org.
  14. [7] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  15. [8] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  16. [9] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  17. [16] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  18. [17] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  19. [24] ↑ . wikidata.org.
  20. [14] ↑ . wikidata.org.
  21. [27] ↑ . wikidata.org.
  22. [28] ↑ . wikidata.org.
  23. [1] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  24. [11] ↑ . general catalog of BnF. Retrieved . wikidata.org.
  25. [12] ↑ . Internetowy Polski Słownik Biograficzny. Retrieved . wikidata.org.
  26. [3] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  27. [13] ↑ . general catalog of BnF. Retrieved . wikidata.org.
  28. [29] ↑ . wikidata.org.
  29. [30] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  30. [31] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  31. [32] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  32. [33] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  33. [34] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  34. [35] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  35. [36] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  36. [37] ↑ . wikidata.org.
  37. [38] ↑ . wikidata.org.
  38. [39] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  39. [40] ↑ . Czech National Authority Database. Retrieved . wikidata.org.

Aggregate / graph-position facts

  1. [10] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [41] ↑ . 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). Adam Freytag. Retrieved October 14, 2026, from https://4ort.xyz/entity/adam-freytag
MLA “Adam Freytag.” 4ort.xyz Knowledge Graph, 4ort.xyz, 14 Oct. 2026, https://4ort.xyz/entity/adam-freytag.
BibTeX @misc{4ortxyz_adam-freytag_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Adam Freytag}}, year = {2026}, url = {https://4ort.xyz/entity/adam-freytag}, note = {Accessed: 2026-10-14}}
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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. 6d ago · HenMac · 2026-10-09 view diff on Wikidata ↗
    Gnd id → 124754716
    Claims rich → —
    "/* wbremoveclaims-remove:1| */ Gnd id: 1089095554"
  2. 9d ago · Printstream · 2026-10-06 view diff on Wikidata ↗
    Wikipedia languages → ['ar', 'be', 'be_x_old', 'commons', 'de', 'en', 'lt', 'mg', 'pl']
    Claims rich → —
    "/* wbeditentity-update-languages-short:0||de */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/57984|batch #57984]]: Import missing aliases from dewiki 1/3"
  3. 18w ago · Bargioni · 2026-06-06 view diff on Wikidata ↗
    Internetowy polski słownik biograficzny id → adam-freytag, adam-freytag-1608-1650-inzynier-wojskowy-i-lekarz
    Country of citizenship → Polish–Lithuanian Commonwealth
    Gnd id → 124754716
    Residence → Kėdainiai
    + 23 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/35318|batch #35318]]: add P1810 to P8034"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.