Dix, R.A.J, Afstammingsreeksen van de heren van Brabant. Geertruida? Anspach, Jacobus, De voormalige heerschap Malsen: en het geslacht Van Malsen, Ter Haar & Schuijt, Leerdam, 1894.
When copying data from this family tree, please include a reference to the origin: Frits Derksen, "Family tree Derikx, Derksen en Heijnen", database, Genealogy Online (https://www.genealogieonline.nl/parenteel-derksen/I3565.php : accessed June 14, 2024), "Catharina van Waardenburg (± 1370-????)".
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