I'm just wondering, but does the realm status board in Hammarsett have a saying: "Make enemies of Corian leaders" ?
I think it's the national pastime of all northern realms: "Piss off Coria whenever possible."
But, honestly, you put yourself in the prime position to anger each and every one of your northern neighbors. I don't understand why you would be surprised at the outcome. (Except for Eston. I have no idea what you guys managed to slip into their water supply.)