When copying data from this family tree, please include a reference to the origin: Peeters Mathieu, "FutureHistory", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-riske/I9126.php : accessed December 25, 2025), "Wilhelmus "Willem" Guilielmus (Wilhelmus "Willem" Guilielmus) van den Gersmoortere (± 1430-????)".
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