When copying data from this family tree, please include a reference to the origin: Henri Frebault, "Noblesse Européenne - European Nobility", database, Genealogy Online (https://www.genealogieonline.nl/noblesse-europeenne/I36078.php : accessed June 19, 2024), "Geoffroy (Geoffroy I Boterel) de Penthièvre (????-1093)".
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Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
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