[sidney]

I think that it would be best to let the Polish members of the TOCH answer your query what the Polish (sur)name is or was.

Polish people were always... Polish people, it is just that they were unfortunate enough to be conquered and divided by the more powerful, neighbouring nations, such as Germans, Austrians and Russians.

What you are arguing here is probably the citizenship. It is correct that at one time they were respectively considered German, Austro-Hungarian or Russian citizens, or subjects.

Sinisa