When copying data from this family tree, please include a reference to the origin: Riny Doyle, "Family tree Riny Doyle geboren Marinus van Waard", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-riny-doyle-geboren-marinus-van-waard/I25912.php : accessed June 8, 2024), "Frederick I OF HOHENBERG (????-1178)".
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