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Research dossier · People & Ideas

John III of Sweden

King of Sweden from 1569 to 1592

Correspondence, annotated notebooks and portrait silhouettes prepared for research
People and ideasInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 14, 2026
Entity authoritySource title only
Source-derived summary

John III was King of Sweden from 1569 until his death. He ascended the Swedish throne after successfully rebelling against his older half-brother Erik XIV. He is mainly remembered for his attempts to close the gap between the newly established Lutheran Church of Sweden and the Catholic Church, as well as his conflict with and possible murder of his brother.

Editorial summary

The public source identifies “John III of Sweden” as king of Sweden from 1569 to 1592. This brief keeps that definition visible, then builds a research path around John, Sweden and King.

Editorial reviewStrongest as a route into the people, institutions and dated events that shaped the subject’s public record. The current lead gives the account dated anchors—1569—that can be checked directly. The selected authority fields contribute no independent date. Its value is orientation rather than verdict, with John, Sweden and King providing the first useful test.
Editorial analysis

Why this record matters

A short description can identify a subject without explaining its stakes. For “John III of Sweden”, the useful work is to connect “king of Sweden from 1569 to 1592” to the records capable of establishing context and consequence.

Evidence profile

Biographical claims are most persuasive when dates, appointments and relationships can be traced to records created close to the events described. The source revision retrieved here is dated Sep 14, 2026. The first chronological checks are 1569.

Critical limits

A concise life account rarely captures disputed attribution, private networks or the changing language used to describe a career. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. 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
Verify next

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 “John III of Sweden”, its source revision and the description used here.
  2. Expand the search: follow John III of Sweden primary sources, John III of Sweden archive and John 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 “John III of Sweden”?
  2. How has the subject’s reputation changed across later accounts?
  3. Which claims depend on a single source or contested interpretation?
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Source & attribution

This entry incorporates text from “John III of Sweden” 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.