After Catherine invited everyone to come colonize her poorly controlled areas from Poland to Volga South of St. Petersbourg to Georgia(the Country) The people came from as far as the modern to the West in UK, north to Norway East in the Arab nations and South in Italy and etc. The people came to pull away from war, famine, fights, poor governance, religious problems to come for freedom and a new start. After Catherine's son reversed her manifesto in many ways - those that could left. North America, back to Germany or many places. It didn't take long for another war- these wars and their consquences change what happen to those migrants.
So personally my teams were northern Germany and Alsace Lorraigne France to Odessa to the US to Canada. Where are you from?