Andlau - Saints-Pierre-et-Paul

Richardis, wife of Charles III (aka "Charles the Fat") and so "Holy Roman Empress", founded the abbey in Andlau ca 880. Later she lived here (as the abbess). She was known for her piety and so she was canonised, when Pope Leo IX paid a visit to the abbey in 1049.

Here is another one of the ten "medaillons" of the on the former main entrance of Saints-Pierre-et-Paul.

A woman and a man standing under an arch. Written on the arch is "HILDEBOLD . SVETA", on the base is written "BEREWARTHEMON". Let´s start with the base. BEREWARTHE or maybe BEREVVARTHE.
This may be "Berengar I of Italy". After Charles III, former husband of Richardis lost his power, Berengar was langobardian king since 888. In the end of his long career, he was King of Italy and crowned "Holy Roman Emperor" by Pope John X. So this connects directly to the "Vita Richardis".

But who is HILDEBOT? And what does SVETA mean. I could not find any female Hildebot or Hildebold, connected to Berengar or Richardis so far. Maybe one of you can give me some hints.