https://www.openstreetmap.org/way/801028960

Is there realy a park yet here ?  Aerial show a construction zone, and the only mapillary we have too : https://www.mapillary.com/app/?pKey=848095836103888 

For the name i just found this official reference :  (p109) https://etterbeek.brussels/sites/default/files/publications/registre/2021-12/20201019_minutes_public_registre_cc.pdf
And text is ambigus to know if the "Commission Royale de Toponymie et de Dialectologie" as been consulted for the park name or not.