Bohemia retains Cracovia, Silesia and Sandomir

I was thinking what if Bohemia were able to defend and retain Cracovia, Silesia and Sandomir instead of it being annexed by Mieszko I of Poland, how would those areas develop and how would that affect the development of Bohemia as a state?
 
It would be nice for wroclaw to have its original name, Vratislav and more czech, german and polish-speaking citizens for kingdom of Bohemia :D
 
It would be nice for wroclaw to have its original name, Vratislav and more czech, german and polish-speaking citizens for kingdom of Bohemia :D

Perhaps if Doubravka did not die earlier which cements the alliance of Bohemia and Polans for a long time.
 
Top