When copying data from this family tree, please include a reference to the origin: P.J. van de Burgt, "Family tree Seekles, vd Burgt, vd Ende, Janssen en Kwartiestaat van Petra van de Burgt", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-seekles/I11812.php : accessed June 11, 2024), "Nn van Bierbeek (± 1115-????)".
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