When copying data from this family tree, please include a reference to the origin: Jaco Oversluizen, "Family tree Oversluizen(Lanser)-van der Beek - de Waard-van den Hoek", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-oversluizen/I9167.php : accessed January 21, 2026), "Richardis de Holland (± 1230-????)".
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