Gerardus Mercator

Flemish geographer, cosmographer and cartographer (1512–1594)
Person human Q6353
Gerardus Mercator
Frans Hogenberg · Public Domain · Wikimedia
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Summary

Gerardus Mercator was born on March 5, 1512[1], in Rupelmonde[2]. He died on December 2, 1594[3], in Duisburg[4]. He worked as a mathematician[5], philosopher[6], theologian[7], cartographer[8], and inventor[9]. He ranks in the top 0.69% of human entities by monthly Wikipedia readership (8,857 views/month, #6,893 of 1,000,298).[10]

Key Facts

  • Place of burial: Church of Our Saviour[11]
  • Spouse: Barbara Schellekens[12], Gertrude Vierlings[13]
  • Child: Bartholomeus Mercator[14], Rumold Mercator[15], Arnold Mercator[16]
  • Country of citizenship: Holy Roman Empire[17], Habsburg Netherlands[18]
  • Occupation: cosmographer[19], university teacher[20], instrument maker[21], writer[22], globe maker[23], copper engraver[24], draftsperson[25], publisher[26], geographer[27]
  • Field of work: geography[28], cartography[29], mathematics[30], theology[31], philosophy[32]
  • Position held: cosmographer[33]
  • Employer: Old University of Leuven[34]
  • Educated at: Old University of Leuven[35], Brethren of the Common Life[36]
  • Doctoral advisor: Gemma Frisius[37]
  • Student: John Dee[38]
  • Notable work: Mercator projection[39], Mercator 1569 world map[40], Mercator map of Palestine[41], Angliae, Scotiae & Hiberniae nova descriptio[42], Mercator Europe map[43], Literarum latinarum, quas italicas, cursoriasque vocant, scribendarum ratio[44], Chronologia[45], Tabulae Geographicae[46], Mercator globe of the Earth (1541)[47]
  • Religion or worldview: Lutheranism[48]
  • Sex or gender: male[49]
  • Family: Mercator family[50]
  • Doctoral student: John Dee[51]
  • Commons category: Gerardus Mercator[52]
  • Family name: Mercator[53], De Kremer[54]
  • Given name: Gerhard[55], Gerardus[56], Gerard[57]

Body

Works and Contributions

Things named for Gerardus Mercator include Mercator projection[58], transverse Mercator projection[59], University of Duisburg-Essen[60], Mercator[61], Mercator Ice Piedmont[62], Merkaartor[63], and Mercator Medal[64].

Why It Matters

Gerardus Mercator has Wikipedia articles in 27 language editions, a strong signal of global cultural recognition.[65] He is known by 56 alternative names across languages and contexts.[66]

He has been cited as an influence by Jodocus Hondius I[67], a cartographer[68], 1563–1612[69], of County of Flanders[70].

He is credited with the discovery of Mercator projection[71], a cylindrical projection[72], founded in 1569[73]. Works attributed to him include Atlas sive cosmographicae[74], an atlas[75]. Entities named for him include Mercator projection[58], transverse Mercator projection[59], University of Duisburg-Essen[60], Mercator[61], Mercator Ice Piedmont[62], and Merkaartor[63].

His notable doctoral advisees include John Dee[76], a philosopher[77], 1527–1608[78], of Kingdom of England[79], specialised in mathematics[80].

FAQs

Where was Gerardus Mercator born?

Gerardus Mercator's place of birth was Rupelmonde[2].

Where did Gerardus Mercator die?

Gerardus Mercator died in Duisburg[4].

Who was Gerardus Mercator married to?

Gerardus Mercator's spouses include Barbara Schellekens[12] and Gertrude Vierlings[13].

What did Gerardus Mercator do for work?

Gerardus Mercator worked as a mathematician[5], philosopher[6], theologian[7], cartographer[8], and inventor[9].

Where did Gerardus Mercator go to school?

Gerardus Mercator was educated at Old University of Leuven[35] and Brethren of the Common Life[36].

Who did Gerardus Mercator influence?

Gerardus Mercator has been cited as an influence by Jodocus Hondius I[67].

What did Gerardus Mercator discover?

Gerardus Mercator is credited as discoverer of Mercator projection[71].

References

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

Direct Wikidata claims

  1. [2] ↑ . Amazon.com. Retrieved . encyclopedia.com. Provenance: wikidata.org.
  2. [4] ↑ . Integrated Authority File. Retrieved . encyclopedia.com. Provenance: wikidata.org.
  3. [49] ↑ . BnF authorities. Retrieved . wikidata.org.
  4. [12] ↑ . MacTutor History of Mathematics archive. wikidata.org.
  5. [13] ↑ . books.google.cat. books.google.cat. Provenance: wikidata.org.
  6. [17] ↑ . worldatlas.com. worldatlas.com. Provenance: wikidata.org.
  7. [18] ↑ . wikidata.org.
  8. [33] ↑ . MacTutor History of Mathematics archive. wikidata.org.
  9. [14] ↑ . wikidata.org.
  10. [15] ↑ . ECARTICO. Retrieved . wikidata.org.
  11. [16] ↑ . ECARTICO. Retrieved . wikidata.org.
  12. [50] ↑ . wikidata.org.
  13. [35] ↑ . MacTutor History of Mathematics archive. wikidata.org.
  14. [36] ↑ . MacTutor History of Mathematics archive. wikidata.org.
  15. [28] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  16. [29] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  17. [30] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  18. [31] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  19. [32] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  20. [5] ↑ . The Fine Art Archive. Retrieved . wikidata.org.
  21. [6] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  22. [7] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  23. [8] ↑ . The Fine Art Archive. Retrieved . geographicus.com. Provenance: wikidata.org.
  24. [9] ↑ . wikidata.org.
  25. [19] ↑ . wikidata.org.
  26. [20] ↑ . wikidata.org.
  27. [21] ↑ . ECARTICO. Retrieved . wikidata.org.
  28. [22] ↑ . Library of the World's Best Literature. wikidata.org.
  29. [23] ↑ . ECARTICO. Retrieved . wikidata.org.
  30. [24] ↑ . ECARTICO. Retrieved . wikidata.org.
  31. [25] ↑ . ECARTICO. Retrieved . wikidata.org.
  32. [26] ↑ . ECARTICO. Retrieved . wikidata.org.
  33. [27] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  34. [34] ↑ . MacTutor History of Mathematics archive. wikidata.org.
  35. [11] ↑ . Find a Grave. wikidata.org.
  36. [48] ↑ . ECARTICO. Retrieved . wikidata.org.
  37. [37] ↑ . wikidata.org.
  38. [51] ↑ . Mathematics Genealogy Project. wikidata.org.
  39. [52] ↑ . wikidata.org.
  40. [1] ↑ . MacTutor History of Mathematics archive. Retrieved . wikidata.org.
  41. [3] ↑ . Integrated Authority File. Retrieved . encyclopedia.com. Provenance: wikidata.org.
  42. [53] ↑ . wikidata.org.
  43. [54] ↑ . wikidata.org.
  44. [55] ↑ . International Standard Name Identifier. Retrieved . wikidata.org.
  45. [56] ↑ . wikidata.org.
  46. [57] ↑ . wikidata.org.
  47. [39] ↑ . wikidata.org.
  48. [40] ↑ . wikidata.org.
  49. [41] ↑ . wikidata.org.
  50. [42] ↑ . wikidata.org.
  51. [43] ↑ . wikidata.org.
  52. [44] ↑ . wikidata.org.
  53. [45] ↑ . wikidata.org.
  54. [46] ↑ . wikidata.org.
  55. [47] ↑ . wikidata.org.
  56. [38] ↑ . Mathematics Genealogy Project. wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [67] ↑ . wikidata.org. → on this site
  2. [71] ↑ . wikidata.org. → on this site
  3. [74] ↑ . wikidata.org. → on this site
  4. [76] ↑ . wikidata.org. → on this site
  5. [58] ↑ . wikidata.org. → on this site
  6. [59] ↑ . wikidata.org. → on this site
  7. [60] ↑ . wikidata.org. → on this site
  8. [61] ↑ . wikidata.org. → on this site
  9. [62] ↑ . wikidata.org. → on this site
  10. [63] ↑ . wikidata.org. → on this site
  11. [64] ↑ . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [68] ↑ . Wikidata. wikidata.org. → on this site
  2. [69] ↑ . Wikidata. wikidata.org. → on this site
  3. [70] ↑ . Wikidata. wikidata.org. → on this site
  4. [72] ↑ . Wikidata. wikidata.org. → on this site
  5. [73] ↑ . Wikidata. wikidata.org. → on this site
  6. [75] ↑ . Wikidata. wikidata.org. → on this site
  7. [77] ↑ . Wikidata. wikidata.org. → on this site
  8. [78] ↑ . Wikidata. wikidata.org. → on this site
  9. [79] ↑ . Wikidata. wikidata.org. → on this site
  10. [80] ↑ . Wikidata. wikidata.org. → on this site

Aggregate / graph-position facts

  1. [10] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [65] ↑ . Wikidata sitelinks. wikidata.org.
  3. [66] ↑ . Wikidata aliases. wikidata.org.

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APA 4ort.xyz Knowledge Graph. (2026). Gerardus Mercator. Retrieved October 17, 2026, from https://4ort.xyz/entity/gerardus-mercator
MLA “Gerardus Mercator.” 4ort.xyz Knowledge Graph, 4ort.xyz, 17 Oct. 2026, https://4ort.xyz/entity/gerardus-mercator.
BibTeX @misc{4ortxyz_gerardus-mercator_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Gerardus Mercator}}, year = {2026}, url = {https://4ort.xyz/entity/gerardus-mercator}, note = {Accessed: 2026-10-17}}
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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. 3h ago · OKA bot bot · 2026-10-17 view diff on Wikidata ↗
    Claims rich → —
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  2. 2d ago · Epìdosis · 2026-10-15 view diff on Wikidata ↗
    P14974 → 44296
    Wikipedia languages → ['ar', 'ast', 'az', 'be', 'be_x_old', 'bg', 'bn', 'bs', 'ca', 'commons', 'cs', '
    Sitelink count → 74
    Claims rich → —
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  3. 24d ago · Trivialist · 2026-09-23 view diff on Wikidata ↗
    P14750 → C79C-57ED-A498-26E1-EAC9
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  4. 8w ago · Mahirtwofivesix · 2026-08-19 view diff on Wikidata ↗
    Babelnet id → 00040276n
    Arabic ontology lexical concept id → 151060737
    "/* wbeditentity-statements-multiple-properties-update:0||4 */ added/modified IDs mapped to WordNet 3.1"
  5. 12w ago · Pierrotrgr · 2026-07-24 view diff on Wikidata ↗
    Biblissima authority id → Gui de Cambrai
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  6. 13w ago · Ronald Weiss · 2026-07-11 view diff on Wikidata ↗
    Described by source → Great Soviet Encyclopedia (1969–1978), Sytin Military Encyclopedia, Small Brockhaus and Efron Encyclopedic Dictionary +12
    "/* wbsetclaim-create:2||1 */ Described by source: Adam: Vitae germanorum philosophorum (1615)"
  7. 14w ago · Epìdosis · 2026-07-11 view diff on Wikidata ↗
    P14611 → 179315
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  8. 14w ago · Printstream · 2026-07-04 view diff on Wikidata ↗
    P14608 → 118580973
    "/* wbcreateclaim-create:1| */ P14608: 118580973, #quickstatements; #temporary_batch_1783130387391"
  9. 17w ago · Akobir abdimuminov · 2026-06-17 view diff on Wikidata ↗
    Parsifal cluster id → 445489
    "/* wbmergeitems-from:0||Q25510994 */"
  10. 17w ago · Epìdosis · 2026-06-13 view diff on Wikidata ↗
    Parsifal cluster id → 445489
    "/* wbsetclaim-create:1||1 */ Parsifal cluster id: 17168, Matched to [[:toollabs:mix-n-match/#/entry/160681683|Gerardo Mercatore (#160681683)]] in [[:toollabs:mix-n-match/#/catalog/6216|Parsifal person"
  11. 20w ago · RVA2869 · 2026-05-23 view diff on Wikidata ↗
    Occupation → mathematician, philosopher, theologian +11
    Described by source → Great Soviet Encyclopedia (1969–1978), Sytin Military Encyclopedia, Small Brockhaus and Efron Encyclopedic Dictionary +12
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  12. 22w ago · Epìdosis · 2026-05-13 view diff on Wikidata ↗
    Cerl thesaurus id → cnp01355754
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/31524|batch #31524]]: remove wrong CERL ID (https://qlever.dev/wikidata/Byhd9M)"
  13. 22w ago · Hannolans · 2026-05-12 view diff on Wikidata ↗
    Local thumb → —
    Has works in the collection → Minneapolis Institute of Art, Basel Historical Museum, Grafische Sammlung der Stadt Augsburg +9
    "/* wbsetclaim-create:2||1 */ Has works in the collection: Museum Plantin-Moretus, Add works in collection based on a work"
  14. 23w ago · Gerwoman · 2026-05-07 view diff on Wikidata ↗
    Local thumb → —
    Sancho el sabio foundation id → 302
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/30423|batch #30423]]"
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