When copying data from this family tree, please include a reference to the origin: Joop van der Horst, "Family tree van der Horst - Vollmuller - Slob - van der Woerd", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-j-j-van-der-horst/I1600.php : accessed May 21, 2024), "Frederuna Harzgau (-1015)".
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Please stick to the following rules
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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