Well they got the holder of the tittle atleast right , sort of , according to wiki it was House of Zähringen Berthold II (1061–1077) . In the game it is Berthold I (1066)

Since the game is not that long out and the amount of historical info they had to work with is just insane its not a big deal . Someone will fix it eventually . However that they messed up a Duchys COA is suprising me

but nvm , this is about the first potential King of Slovakia  :D 

And Carinthia as the rest of Europe will fall under my great conquerors rule eventually  * evil-laugh-smiley*