for the records of secondary name in fr : Roodenbeek : https://archiviris.be/fr/2020/11/15/la-parc-josaphat-a-schaerbeek/ in nl we found also  Roodebeek https://perspective.brussels/sites/default/files/poles/josaphat_syntheseverslag_info_part_nl.pdf

Dificult to say if spelling is realy specific in nl/fr or it's just different spelling no matter the language.