Sorry. Bad joke, Irena.
Citizen/s of Berlin = Berliner
Citizen/s of Vienna (Wien) = Wiener
Oh! So you meant something like whiner? Funny. I thought you were referring to some type of food or drink or something.
Irena, you aren't by any chance trying to get me to drop myself in it
again, are you? (Not that you'd tried to do that the last time, I know that! Managed to do that all on my own. Still...)
https://www.macmillandictionary.com/dictionary/british/wiener