Hi David,
Are you sure about the spelling of
Shimmal? That would be very unusual for a German name.
Do you have a written note of this, or something noted phonetically?
The most likely candidate would be
Schimmel.
Asperg is only a smallish place. You could try sending an E-Mail to the local council:
Stadtverwaltung Asperg
Marktplatz 1
71679 Asperg
E-Mail:
info@asperg.deIf you need help writing something in German, please let me know.
Alternatively, I can recommend the online translator
deepl.com (there is a free version), which works extremely well for texts which are not extremely technical.
Best regards,
Karen
in Wolfenbüttel, N. Germany