An outstanding sword, Jean-Luc.
I wish you luck with the name deciphering.
Remember that most possibly it was 'latinized', in line with ALAMANIA ME FECIT.
The first name Peter is not German but, Pieter would be. Probably also Avillem doesn't make sense, although Willem does.
So you would have Pieter Willem Bere ... assuming that 'Bere' is a real family name.
Obviously i am only shooting in the dark
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