I think your linguistic abilities are letting you down. Koenigreich is simply the German word for "Kingdom". Boehmen (Bohemia) was a kingdom within the Austro-Hungarian Empire (Kaiser Reich). If, as I would guess, you have some document which says someone came from "Koenigreich Boehmen" it is simply saying that person came from the "Kingdom of Bohemia", if you have nothing else that looks like the name of a town/city I think you are in for a long search. As to your query about Poland/Galicia/Slovakia etc. they were all part of the Austro-Hungarian Empire - you need to get a map of 19th century Europe. Your ancestor could easily have moved around all those areas.