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John III Doukas Vatatzes

Emperor of Nicaea from 1221 to 1254

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 16, 2026
Entity authoritySource title only
Source-derived summary

John III Doukas Vatatzes, Latinized as Ducas Vatatzes, was Emperor of Nicaea from 1221 to 1254. He was succeeded by his son, known as Theodore II Doukas Laskaris.

Editorial summary

The public source identifies “John III Doukas Vatatzes” as emperor of Nicaea from 1221 to 1254. This brief keeps that definition visible, then builds a research path around John, Doukas and Vatatzes.

Editorial reviewA practical starting point whose main value is the path it opens into stronger specialist and primary sources. The current lead gives the account dated anchors—1221, 1254—that can be checked directly. The selected authority fields contribute no independent date. Its value is orientation rather than verdict, with John, Doukas and Vatatzes 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 Doukas Vatatzes”, the useful work is to connect “emperor of Nicaea from 1221 to 1254” to the records capable of establishing context and consequence.

Evidence profile

The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 16, 2026. The first chronological checks are 1221 and 1254.

Critical limits

A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. 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

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

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  2. Expand the search: follow John III Doukas Vatatzes primary sources, John III Doukas Vatatzes 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

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Source & attribution

This entry incorporates text from “John III Doukas Vatatzes” 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.