Re: Datum
In the Imperial Year 2512, the Electoral States were:
-The Grand Principality of Reikland
-The Grand Duchy of Middenland
-The Independent City-State of Middenheim
-The Grand County of Averland
-The Grand Barony of Sudenland
-The Independent City-State of Nuln
-The Grand Duchy of Talabecland
-The Grand Principality of Ostland
-The Independent City-State of Talabheim
-The Grand County of Stirland
The non-electoral provinces were:
-The Barony of Nordland (owing fealty to the Graf of Middenheim)
-The County of Wissenland (owing fealty to Nuln)
-The County of Sylvania (subordinate to Stirland)
-The Barony of Hochland (attached to Talabheim)
-The League of Ostermark (attached to Talabecland)
The Empire is a complex place, politically.
This is why the 'Carroburg Greatswords' are a Reiklander regiment, named after the capital of Middenland, that they defended from the forces of the Graf of Middenheim.
Between 2512, where The Enemy Within and most WFRP1st/4th is set, and 2520 where Warhammer Fantasy Battle 4th/5th edition are set, a great deal of political restructuring happens in the Empire.
And then a great deal of it gets wiped out between then and the beginning of the 2nd edition of WFRP, set as it is in 2525, immediately following the seemingly later retconned Storm of Chaos.