Okay: The story will be taking place in Ukraine, a little north of the northern shore of the Black sea, and a little west of the Dnieper River. Google map of the location here
. I like this position. Close to the trade routes of the time, but not so close that everything is easy to come by. And enough out in the sticks that it will not be too under the sway of the invaders/government du jour.
Next: Thinking about gameplay.