Ah Sauerbraten - I know how to make it quite well. My mother was born in Germany in '32, lived through the war (Yes, she has stories) and came to the US in '52, I am mostly German.
Mom grew up in a little town called Annweiler am Trifels near the border with France in the Rhineland Pfalz.
This is the castle Trifels that sits above the town.
My late Aunt had a nice place in town.
This is Rothenberg, which we happened to visit last time, 2018.
Of course my visit to Frankfurt got me visitation to the bass collection of Uwe Hornung......
EB6 anyone?
Perhaps the SPCB?