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The Paul Christiaan Smis. Oude namen. publication was prepared by Paul C. Smis (contact is not possible).
When copying data from this family tree, please include a reference to the origin: Paul C. Smis, "Paul Christiaan Smis. Oude namen.", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-boris-schubert-moonlight/R17259.php : accessed June 14, 2024), "Helmut Friedrich von Oertzen (1673-1754)".
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