It's impossible to answer without knowing what you mean by "inverter." However, based on the name, it's likely you're referring to the Harry Potter universet.
If that's the case, Bellatrix Black's ancestors are:
* Foreldrene hennes: Cygnus Black og Druella Black
* besteforeldrene hennes: Pollux Black og Irma Black
* Lengre bak: The Black family has a very long and complicated family tree.
Let me know if you have a specific relative or family member in mind, and I can help you track down their lineage!