Karl-Michael Sala konfers:
Historic Silesia, superimposed on modern international borders: The mediæval Bohemian crown land (as of 1538) outlined in cyan, Prussian Silesia as of 1815 in yellow. From http://en.wikipedia.org/wiki/Silesia
Notice it extends into Sachsen!
This pertains to several posts in this & other regions. Silesia (Schlesien) also explains why the concepts of the geography of Czechoslovakia, Germany & Poland are, in this region, confusing.
So, Karl-Michael Sala, German Genealogy research expert, did my ancestor live in Czechoslovakia, Bohemia (Böhmen), Saxony (Sachsen), Silesia (Schlesien), Germany (Deutschland), Poland (Polen), Prussia (Preussen), or something else?