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Theobald I of Navarre

King of Navarre from 1234 to 1253

Correspondence, annotated notebooks and portrait silhouettes prepared for research
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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 19, 2026
Entity authorityQ314562
Source-derived summary

Theobald I (French: Thibaut, Spanish: Teobaldo; 30 May 1201 – 8 July 1253), also called the Troubadour and the Posthumous, was Count of Champagne (as Theobald IV) from birth and King of Navarre from 1234. He initiated the Barons' Crusade, was famous as a trouvère, and was the first Frenchman to rule Navarre.

Rule of Champagne

Regency of Champagne

Born in Troyes, he was the son of Theobald III of Champagne and Blanche of Navarre, the youngest daughter of Sancho VI of Navarre. His father died less than a week before he was born, and Blanche ruled the county as regent until Theobald turned twenty-one in 1222. He was a notable trouvère, and many of his songs have survived, including some with music.

The first half of Theobald's life was plagued by a number of difficulties. His uncle, Count Henry II, had left behind a great deal of debt, which was far from paid off when Theobald's father died. Further, Theobald's right to the succession was challenged by Henry's daughter Philippa and her husband, Erard I of Brienne, Count of Ramerupt, and one of the more powerful nobles of Champagne.

The conflict with Erard and Philippa broke into open warfare in 1215 as the Champagne War of Succession, and was not resolved until after Theobald came of age in 1222. At that time he bought out their rights for a substantial monetary payment.

Editorial summary

This brief starts where responsible research should: with the source description of “Theobald I of Navarre” as king of Navarre from 1234 to 1253. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewA useful biographical orientation record, particularly for establishing names, roles and a first chronology. The current lead gives the account dated anchors—1201, 1253, 1234, 1222—that can be checked directly. The linked authority record independently contributes the date 1201-05-30. The account is most persuasive where Theobald, Navarre and King can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the people & ideas register because the source frames it as king of Navarre from 1234 to 1253. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

The entry’s evidential value lies in the named roles, institutions and publications that can be tested against primary documentation. The source revision retrieved here is dated Sep 19, 2026. The linked authority identifier is Q314562. VIAF identifies the subject as 261887210. The Library of Congress control number is n85801009. 3 of 5 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1201, 1253, 1234 and 1222.

Critical limits

A concise life account rarely captures disputed attribution, private networks or the changing language used to describe a career. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Read biographical claims against dates, named institutions and the cited references. Distinguish a subject’s later reputation from evidence produced during their lifetime.

Best used for
  • Establishing names and roles
  • Building a first chronology
  • Locating cited institutions
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Personal papers, civil or court records, institutional files and the scholarship cited by the source.

Three-step research path

  1. Establish the record: confirm the title “Theobald I of Navarre”, its source revision and the description used here.
  2. Expand the search: follow Theobald I of Navarre primary sources, Theobald I of Navarre archive and Theobald research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Theobald I of Navarre”?
  2. Which claims depend on a single source or contested interpretation?
  3. Which primary records establish identity, chronology and institutional ties?
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Source & attribution

This entry incorporates text from Theobald I of Navarre” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.