Additionally, what time are we even in? The medical facilities are very developed, to the point of the rooms looking like modern hospital rooms, however, they don't have the same technological equipment such as scanners, nor are the outsides very developed.
There are also lots of fights with swords, but they have developed guns, however, most of the guns are revolvers, but there was also an AK-47 on the flag of the Imperial Gun divisions flag, the AK-47 gun was developed in 1947?
On top of that, the pistol the Nicholas guy (Scorpion of the desert) pulled out looked like a Colt M1911 which was developed in 1911.
Also, the imperial fleet was in the black sea, how exactly did the prince and Elise manage to escape all that way from Prague in just a few days, with very little supplies?