When copying data from this family tree, please include a reference to the origin: Reinhard van Elderen, "Family tree Van Elderen en Van der Speld", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-elderen-en-van-der-speld/I3149.php : accessed June 20, 2024), "Maria van Oyen (± 960-????)".
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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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