When copying data from this family tree, please include a reference to the origin: W.M. Poort, "Family tree Poort", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-familie-poort/I54491.php : accessed April 29, 2024), "Marcilius van Waderle (± 1210-????)".
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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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