William fitz Giroie
Lord of Echauffour and Montreuil
William fitz Giroie (died 1057), Lord of Échauffour and Montreuil-l'Argillé. A Norman nobleman and patriarch of a large and powerful family in Normandy and Apulia.
Career
William was the second son of Giroie, Lord of Échauffour and Gisle, daughter of Thurston de Bastembourg lord of Montfort-sur-Risle. At their father's death in 1033, those properties making up his inheritance went to the eldest son Arnold, while most of the lands Giroie had acquired went to William. When Arnold died from an accidental fall in 1041, William was his heir and, less the smaller holdings that went to his two younger brothers, he inherited most of his father's lands. From that time on William was the family patriarch and according to Orderic Vitalis governed his family well. He headed a powerful family consisting of his brothers, sons, and numerous nephews all of whom were themselves formidable warriors.
About 1050, William heard of an old fountain in the forest near a stream called Charenton and went to investigate. He discovered the ruins of an old church dedicated to St. Peter the apostle and surveyed the area for what became the restored Abbey of Saint-Evroul, so named for its original founder St.
This brief starts where responsible research should: with the source description of “William fitz Giroie” as lord of Echauffour and Montreuil. Everything that follows is an evidence route, not borrowed authority.
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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 Jun 8, 2026. The linked authority identifier is Q3119863. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1057, 1033, 1041 and 1050.
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This entry incorporates text from “William fitz Giroie” 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.