Sir Theodore Janssen, 1st Baronet

British baronet
Person human Q7529016
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Sir Theodore Janssen, 1st Baronet

Summary

Sir Theodore Janssen, 1st Baronet is a human[1]. He was born in Angoulême[2]. He was born on January 1, 1658[3]. He died in Wimbledon[4]. He died on September 22, 1748[5]. He worked as a politician[6].

Key Facts

  • Sir Theodore Janssen, 1st Baronet's place of birth was Angoulême[2].
  • Sir Theodore Janssen, 1st Baronet passed away in Wimbledon[4].
  • Sir Theodore Janssen, 1st Baronet was born on January 1, 1658[3].
  • Sir Theodore Janssen, 1st Baronet was born on 1658[7].
  • Sir Theodore Janssen, 1st Baronet died on September 22, 1748[5].
  • Sir Theodore Janssen, 1st Baronet died on 1748[8].
  • Sir Theodore Janssen, 1st Baronet's father was Abraham Janssen[9].
  • Among Sir Theodore Janssen, 1st Baronet's spouses was Williamsa Henley[10].
  • A child of Sir Theodore Janssen, 1st Baronet was Mary Janssen[11].
  • A child of Sir Theodore Janssen, 1st Baronet was William Janssen[12].
  • A child of Sir Theodore Janssen, 1st Baronet was Stephen Theodore Janssen[13].
  • A child of Sir Theodore Janssen, 1st Baronet was Abraham Janssen[14].
  • A child of Sir Theodore Janssen, 1st Baronet was Sir Henry Janssen, 3rd Bt.[15].
  • A child of Sir Theodore Janssen, 1st Baronet was Barbara Janssen[16].
  • Sir Theodore Janssen, 1st Baronet held citizenship in Kingdom of Great Britain[17].
  • Sir Theodore Janssen, 1st Baronet's professions included politician[6].
  • Sir Theodore Janssen, 1st Baronet held the position of member of the 5th Parliament of Great Britain[18].
  • Sir Theodore Janssen, 1st Baronet received the Knight Bachelor[19].
  • Sir Theodore Janssen, 1st Baronet is recorded as male[20].
  • Sir Theodore Janssen, 1st Baronet's instance of is recorded as human[21].
  • Sir Theodore Janssen, 1st Baronet's noble title is recorded as baronet[22].
  • Sir Theodore Janssen, 1st Baronet's noble title is recorded as Janssen baronets[23].
  • Sir Theodore Janssen, 1st Baronet's honorific prefix is recorded as Sir[24].
  • Sir Theodore Janssen, 1st Baronet's family name is recorded as Janssen[25].
  • Sir Theodore Janssen, 1st Baronet's given name is recorded as Theodore[26].

Body

Origins and Family

Born in Angoulême[2], Sir Theodore Janssen, 1st Baronet… Recorded date of birth include January 1, 1658[3] and 1658[7]. His father was Abraham Janssen[9].

Career and Affiliations

Sir Theodore Janssen, 1st Baronet worked as a politician[6]. He held the position of member of the 5th Parliament of Great Britain[18].

Recognition

Sir Theodore Janssen, 1st Baronet received the Knight Bachelor[19].

Personal Life

Sir Theodore Janssen, 1st Baronet was married to Williamsa Henley[10]. Children include Mary Janssen[11], 1715–1770[27]; William Janssen[12]; Stephen Theodore Janssen[13], a politician[28], of Kingdom of Great Britain[29]; Abraham Janssen[14], a politician[30], 1699–1765[31]; Sir Henry Janssen, 3rd Bt.[15]; and Barbara Janssen[16], 1704–1779[32].

Death and Burial

Recorded date of death include September 22, 1748[5] and 1748[8]. Sir Theodore Janssen, 1st Baronet died in Wimbledon[4].

FAQs

Where was Sir Theodore Janssen, 1st Baronet born?

Born in Angoulême[2], Sir Theodore Janssen, 1st Baronet…

Where did Sir Theodore Janssen, 1st Baronet die?

Sir Theodore Janssen, 1st Baronet died in Wimbledon[4].

Who were Sir Theodore Janssen, 1st Baronet's parents?

Sir Theodore Janssen, 1st Baronet's father was Abraham Janssen[9].

Who was Sir Theodore Janssen, 1st Baronet married to?

Sir Theodore Janssen, 1st Baronet's spouses include Williamsa Henley[10].

What did Sir Theodore Janssen, 1st Baronet do for work?

Sir Theodore Janssen, 1st Baronet worked as politician[6].

What awards did Sir Theodore Janssen, 1st Baronet receive?

Honors received include Knight Bachelor[19].

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. [20] . The Peerage. wikidata.org.
  4. [9] . Genealogics. wikidata.org.
  5. [10] . Retrieved . wikidata.org.
  6. [17] . wikidata.org.
  7. [21] . wikidata.org.
  8. [18] . wikidata.org.
  9. [11] . The Peerage. wikidata.org.
  10. [12] . The Peerage. wikidata.org.
  11. [13] . The Peerage. wikidata.org.
  12. [14] . The Peerage. wikidata.org.
  13. [15] . The Peerage. wikidata.org.
  14. [16] . wikidata.org.
  15. [22] . wikidata.org.
  16. [23] . wikidata.org.
  17. [6] . wikidata.org.
  18. [19] . wikidata.org.
  19. [24] . wikidata.org.
  20. [3] . SNAC. Retrieved . wikidata.org.
  21. [7] . Catalog of the German National Library. Retrieved . wikidata.org.
  22. [5] . The Peerage. wikidata.org.
  23. [8] . Catalog of the German National Library. Retrieved . wikidata.org.
  24. [25] . wikidata.org.
  25. [26] . wikidata.org.

Inline context (facts about related entities)

  1. [27] . Wikidata. wikidata.org. → on this site
  2. [28] . Wikidata. wikidata.org. → on this site
  3. [29] . Wikidata. wikidata.org. → on this site
  4. [30] . Wikidata. wikidata.org. → on this site
  5. [31] . Wikidata. wikidata.org. → on this site
  6. [32] . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] . Wikidata. 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). Sir Theodore Janssen, 1st Baronet. Retrieved May 3, 2026, from https://4ort.xyz/entity/sir-theodore-janssen-1st-baronet
MLA “Sir Theodore Janssen, 1st Baronet.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/sir-theodore-janssen-1st-baronet.
BibTeX @misc{4ortxyz_sir-theodore-janssen-1st-baronet_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Sir Theodore Janssen, 1st Baronet}}, year = {2026}, url = {https://4ort.xyz/entity/sir-theodore-janssen-1st-baronet}, note = {Accessed: 2026-05-03}}
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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 ↗
    Isni 0000000066666332
    Wikitree person id Janssen-856
    Honorific prefix Sir
    Date of death +1748-09-22T00:00:00Z, +1748-00-00T00:00:00Z
    + 44 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/30851|batch #30851]]: match CERL IDs on the basis of GND (7)"
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