Theodor Decker

Finnish architect (1838–1899)
Person Human Q3523659

Facts

16 properties
Instance of
human
Sex or gender
male[10]
Date of birth
December 1, 1838
Date of death
April 3, 1899
Place of birth
Helsinki
Place of death
Helsinki
Country of citizenship
Grand Duchy of Finland[6]
Occupation
architect
Languages spoken, written or signed
Finnish[19]
Birth name
Aleksander Theodor Decker[20]
Family name
Decker[11]
🏷️ Also known as
en Alexander Teodor Decker en Teodor Decker en Theodor Decker en Aleksander Theodor Decker en Alexander Theodor Decker de Aleksander Theodor Decker de Alexander Theodor Decker fi Alexander Teodor Decker fi Aleksander Theodor Decker fi Alexander Theodor Decker fi Teodor Decker ru Теодор Деккер sv Aleksander Theodor Decker sv Alexander Teodor Decker sv Alexander Theodor Decker sv Teodor Decker
🔖 Identifiers · 8
Image (Wikimedia Commons)
Theodor Decker.jpg ↗
ArchINFORM person/group ID
28213
Artists of the World ID
10182804
Geni profile ID
6000000028000590077
Google Knowledge Graph ID
/g/1222ckz5
Musée d'Orsay artist or personality ID
110655
Student register of the University of Helsinki ID (1853–1899)
17485
Uppslagsverket Finland ID
DeckerAlexander

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🔗 Connections
Given name 4
Country of citizenship 1
Family name 1
Instance of 1
Languages spoken, written or signed 1
Notable work 1
Occupation 1
Place of birth 1
Place of death 1
Sex or gender 1
← Architect 1
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Summary

Theodor Decker was born on December 1, 1838[1], in Helsinki[2]. He died on April 3, 1899[3], in Helsinki[4]. He worked as an architect[5].

FAQs

Where was Theodor Decker born?

Theodor Decker's place of birth was Helsinki[2].

Where did Theodor Decker die?

Theodor Decker passed away in Helsinki[4].

What did Theodor Decker do for work?

Theodor Decker worked as an architect[5].

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. [10] ↑ . wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [5] ↑ . archINFORM. Retrieved . wikidata.org.
  6. [1] ↑ . Uppslagsverket Finland. wikidata.org.
  7. [3] ↑ . Uppslagsverket Finland. wikidata.org.
  8. [11] ↑ . Built Heritage Register. Retrieved . wikidata.org.
  9. [12] ↑ . wikidata.org.
  10. [13] ↑ . wikidata.org.
  11. [14] ↑ . wikidata.org.
  12. [15] ↑ . wikidata.org.
  13. [7] ↑ . wikidata.org.
  14. [8] ↑ . wikidata.org.
  15. [9] ↑ . wikidata.org.
  16. [16] ↑ . Biografiskt lexikon för Finland. wikidata.org.
  17. [17] ↑ . wikidata.org.
  18. [18] ↑ . wikidata.org.
  19. [19] ↑ . wikidata.org.
  20. [20] ↑ . 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). Theodor Decker. Retrieved November 9, 2026, from https://4ort.xyz/entity/theodor-decker
MLA “Theodor Decker.” 4ort.xyz Knowledge Graph, 4ort.xyz, 9 Nov. 2026, https://4ort.xyz/entity/theodor-decker.
BibTeX @misc{4ortxyz_theodor-decker_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Theodor Decker}}, year = {2026}, url = {https://4ort.xyz/entity/theodor-decker}, note = {Accessed: 2026-11-09}}
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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. 21w ago · Robertsilen · 2026-06-14 view diff on Wikidata ↗
    Student of → Georg Theodor Chiewitz
    "Changed the item: QuickStatements 3.0 batch #36494: P802 student, blf.fi, inverse"
  2. 27w ago · Arch2bot bot · 2026-05-05 view diff on Wikidata ↗
    Depicted by → Portrait of Architect Theodor Decker
    Described by source → Albert Edelfelt's letters
    Sex or gender → male
    Given name → Theodor, Aleksander, Alexander +1
    + 8 other properties edited (see Wikidata diff for full list)
    "Added reference: Occupation: architect, Add archINFORM reference"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.