All of Zamukha sons is quite obedient.
Not because they love their father but because they could not disobey the chief words.
Not to mention that the chief is their father
This method of enfeoffing them to different region works because it shows even the chief son had to work their ass off.
But now when the one that is always refereeing the match is not there, suddenly, these sons of his now become a very unstable factor.
All it needed is a spark that would turn the current already fragile situation into an internal war.
Will the chief of Vihur tribe dies? And if he dies who would succeed him?
Will one of his sons won the seat? Or will it be one of his bastards?
All the young wolves waiting for the old wolf to die.
When the old wolf dies, the young wolves would pounce on each other. Or would it be a foreign tribe that sees this as a weakness and cut the fortune of the Vihur tribe?