This profile, which seems well-documented, has her parents:
https://gw.geneanet.org/rodolfoweber?lang=en&pz=rodolfo&nz=...
OK, it looks like there are some links within Geni.
Here is another profile for the same person
Sophia von Peilstein
where her father is Diepold III, but her mother is the eponymous
Sophia von Vohburg, hungarian
Until the Geni managers of all these profiles can get the total story worked out, I will presume the Geneanet profile to be the accurate one.
