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William de Mandeville, 3rd Earl of Essex

Councillor of Henry II and Richard I of England and crusader

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionJun 9, 2026
Entity authorityQ2581200 ↗
Source-derived summary

William de Mandeville, 3rd Earl of Essex (1st Creation) (died 14 November 1189) was a loyal councillor of Henry II and Richard I of England.

William was the second son of Geoffrey de Mandeville, 1st Earl of Essex and Rohese de Vere, Countess of Essex. After his father's death while in rebellion (1144), William grew up at the court of the Count of Flanders. On the death of his elder brother Geoffrey late in 1166, he returned to England and became Earl of Essex, where he spent much time at the court of Henry II. He stayed loyal to the king during the Revolt of 1173–1174, known as the Revolt of the Young King.

In 1177 William became a crusader, in company with Count Philip of Flanders. Philip attempted to intervene in the court politics of the Kingdom of Jerusalem but was rebuffed, and the two fought for the Principality of Antioch at the siege of Harim. William returned to England in the autumn of 1178.

In 1180 William married Hawise, daughter and heiress of William, Count of Aumale, a major Yorkshire lord, who had died the previous year. Earl William gained possession of her lands, both in Normandy and in England, along with the title of Count of Aumale (or Earl of Albemarle as it is sometimes called).

William fought in the wars against the French toward the end of Henry II's reign, and was at the deathbed of that king in 1189.

Editorial summary

Begin with the source’s own compact description: “William de Mandeville, 3rd Earl of Essex” is councillor of Henry II and Richard I of England and crusader. The dossier treats that line as a proposition to test through William, Mandeville and Earl, not as a finished interpretation.

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—1189, 1144, 1166, 1173—that can be checked directly. The linked authority record independently contributes the date 1101. For this dossier, William, Mandeville and Earl is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “councillor of Henry II and Richard I of England and crusader” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

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 Jun 9, 2026. The linked authority identifier is Q2581200. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1189, 1144, 1166 and 1173.

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Source & attribution

This entry incorporates text from “William de Mandeville, 3rd Earl of Essex” 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.