== Frombork (Frauenburg) was in Royal Prussia  == 

 (You wrote) 

 Frauenburg (Frombork), Warmia was in Royal Prussia. Please undo yourself.  

 ::Royal Prussia was a province of the Kingdom of Poland however, Warmia is a region between Pomerania and Masuria in northeastern Poland and together with Masuria, it forms the Warmian-Masurian Voivodeship. I cannot be both, Warmia and Royal Prussia at the same time, it's either one or the other. Look at the map and try to find Warmia if you can. What I did was to correct that mistake.