Perhaps you may wish to add sources after reviewing the link and the sources related to what's written.
https://en.wikipedia.org/wiki/Bernard_Plantapilosa
Wikipedia isn't reliable enough, and the sources it provides here are secondary at best.
This shaggy character *is* referenced in MedLands, however: https://fmg.ac/Projects/MedLands/AQUITAINE.htm#BernardPlanteveluedi...
Interestingly(?) https://fmg.ac/Projects/MedLands/AQUITAINE.htm#BernardPlanteveluedi... makes no mention of a son named Hector, who is the only descendant showing on Geni.
This version Bernard Plantapilosa, Count of Toulouse conforms much closer to Medlands.
PS no Knut, the suffix you added didn't help find the duplicate :)