When copying data from this family tree, please include a reference to the origin: Björn Vielhaber, "Vielhaber Web Tree", database, Genealogy Online (https://www.genealogieonline.nl/vielhaber-web-tree/I1602.php : accessed May 5, 2025), "Günther II. von Käfernburg-Schwarzburg Graf (1135-1197)".
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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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