This is a piece of additional Info. for u to read, though it is not the exact answer to your question.
There are some kinds of beer named with the location name plus "ER" (of the meaning of the people in that location) in Germany, e.g.
Pfungstadt (location) -> Pfungstädter
Darmstadt (location) -> Darmstädter
PS: ''-stadt'' should be changed to ''-städter''.