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William de Londres

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 19, 2026
Entity authoritySource title only
Source-derived summary

William de Londres (c. 1070–1126 or 1131) was an Anglo-Norman knight, castellan of Ogmore (Welsh: Aberogwr), under the reign of William II. He was one of the twelve knights of Glamorgan who helped Robert FitzHamon conquer the Welsh Kingdom of Morgannwg at the end of the 11th century during the Norman conquest of Wales.

Lifetime

William de Londres was a Norman lord, and a knight. In 1091, he assisted Robert FitzHamon in the conquest of the Kingdom of Morgannwg, who gave him the lordship of Ogmore. De Londres built Ogmore Castle in c. 1100; it was constructed by 1116 and probably before FitzHamon's death in 1107. De Londres also founded Kidwelly Castle.

After 1106, he supported Henry de Beaumont in the conquest of Gower, where he built Oystermouth Castle, after being assigned the fief of Oystermouth.

By 1114, de Londres was serving at Kidwelly.

During Gruffydd ap Rhys's rebellion in 1116, William de Londres was forced to abandon Ogmore Castle, fleeing with his cattle and belongings.

Editorial summary

Begin with the source’s own compact description: “William de Londres” is open-knowledge reference entry. The dossier treats that line as a proposition to test through William, Londres 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—1070, 1126, 1131, 1091—that can be checked directly. The selected authority fields contribute no independent date. For this dossier, William, Londres and Open-knowledge is the immediate research focus.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Sep 19, 2026. The first chronological checks are 1070, 1126, 1131 and 1091.

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Source & attribution

This entry incorporates text from “William de Londres” 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.