maybe they are rebels because of the death of the king;was quit common in the Middle Ages to become more or less independent when the king is gone and his heir takes over the kingdom;i dont think is a bug;

------------------
One sword to behead the white ruler sitting on the white throne in the Vatican.
One sword for the ruler who will come and unite us under the sign of the cross
with broken arms. Eleven swords to behead eleven lords and rulers of the land
united under the blue banner. A hundred swords to defend our southern
boundaries against black plague and half moon.
And one axe for me to defend my stronghold, and may I call this axe, "Bane of
Christendom" soon.