When copying data from this family tree, please include a reference to the origin: Pieter Janssen, "Family tree Janssen-Frencken | van Helden tot Heden", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-janssen-frencken/I15512.php : accessed May 14, 2024), "Collin Lediger von Heringen, (± 1505-± 1549)".
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