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East Frisian-Gueldrian War

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionAug 22, 2026
Entity authorityQ1313561 ↗
Source-derived summary

The East Frisian-Gueldrian War of 1531–1534, also known as the Gueldrian Feud, was a conflict between Counts Enno II and Johan I of East Frisia on the one hand, and Balthasar von Esens and Duke Charles II of Guelders on the other. In this war, which lasted from 1531 to 1534, East Frisia suffered severe devastation. The war came to an end in 1534 with the Peace of Logum.

Background

The Counts of East Frisia from the House of Cirksena had been having problems with Lord Balthasar von Esens, the Lord of Esens, Stedesdorf and Wittmund, for some time. In 1530, Enno II marched to Esens, defeated Balthasar, and forced him into a humiliating peace. Enno II took away a large part of his former territory, including Wittmund, Westerholt, Ochtersum, Dunum, and Werdum. Balthasar was also forced to accept Enno as his feudal lord and beg on his knees for the signing of a treaty. Balthasar plotted revenge. In 1531, he found help from the Catholic Duke Charles of Guelders, who was not well-disposed towards the Counts of East Frisia because the Reformation had been introduced in East Frisia under Enno's father, Edzard I of East Frisia.

The War

In 1531, Balthasar's troops invaded East Frisia and devastated the country.

Editorial summary

Begin with the source’s own compact description: “East Frisian-Gueldrian War” is open-knowledge reference entry. The dossier treats that line as a proposition to test through East, Frisian-Gueldrian and Open-knowledge, not as a finished interpretation.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—1531, 1534, 1530—that can be checked directly. The selected authority fields contribute no independent date. For this dossier, East, Frisian-Gueldrian and Open-knowledge is the immediate research focus.
Editorial analysis

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Evidence profile

Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Aug 22, 2026. The linked authority identifier is Q1313561. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1531, 1534 and 1530.

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Source & attribution

This entry incorporates text from “East Frisian-Gueldrian War” 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.