Sorbs aren’t indigenous people. They are a non-Germanic ethnic minority in Germany, who’ve been living here – in about the same way are we ethnic Germans – have. Same way there were/are German minorities East and West what is now Germany. Apart from them, there are also the Germanic minorities of Danes (that part of what is now Germany went back and borth between Germany and Denmark a lot) and of course the Frisians, which are of course very close to both Dutch and Germans.
