>>130242136Marupilami isn't quite a spinoff in the conventional sense of the term initially, it was the rightholder to the Marsupilami, different from the rightholder of Spirou, taking his character (and a few others) away with him and using it in a different setting, Ken Penders style (only, not terrible). For decades the mere suggestion that the marsupilami books were directly related to Spirou would get you acquainted with lawyers.
Of course it officially became a spinoff when Dupuis acquired Marsu Productions but that was onlya couple years ago.