When copying data from this family tree, please include a reference to the origin: JC Nikerk, "Family tree Nikerk (Duiveland)", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-nikerk/I591.php : accessed March 2, 2026), "Godfried van Loons-Heinsberg (????-1395)".
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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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