Really? That‘s fascinating!
Slovakia had the Bratislava area, the Spish/Zips region and the Hauerland in Eastern Slovakia with significant populations of ethnic Germans. And in Poland, there were regions like this, too, but a lot of it depended on the borders in any given era. The last German enclaves in Congress Poland were settled as recently as the early 19th century - at the same time the czars settled other Germans in Bessarabia or the Black Sea region.
Fascinating stories indeed.😀
Kosice area, and just West of Warsaw.
Most didn’t move West in time, and were killed after the War.
The survivors were the ones who came out of the Russian POW camps, or immigrated before the War.