When copying data from this family tree, please include a reference to the origin: Maryna Zhubryk, "Olga's tree", database, Genealogy Online (https://www.genealogieonline.nl/olgas-tree/I501072.php : accessed May 3, 2025), "Екатерина II (Екатерина II,) Sophie Auguste Friederike von Anhalt-Zerbst-Dornburg (1729-1796)".
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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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