It's a feature that I think could have been implemented from the first game, and one that might add a lot more drama to the successions. But consider this:
A Nation has a certain designated "Law of Succession," either Semi-salic Primogeniture, or etc. This law designates a certain succession order. However, as ruler, you can designate for yourself who should succeed you, based on the traits you deem to be most important.
Once the King dies, there could be a "succession crisis," a rebellion whose strength would vary depending on how "legal" the chosen Heir's succession is based upon the Law of the Land. Characters bypassed in succession would receive claims and could become extremely disloyal and/or the ringleaders of the rebellion.
It would give the player more flexibility in determining his heir, something that a real Ruler would have had, while also modeling the destabilizing effects that something like that would have had, historically.
A Nation has a certain designated "Law of Succession," either Semi-salic Primogeniture, or etc. This law designates a certain succession order. However, as ruler, you can designate for yourself who should succeed you, based on the traits you deem to be most important.
Once the King dies, there could be a "succession crisis," a rebellion whose strength would vary depending on how "legal" the chosen Heir's succession is based upon the Law of the Land. Characters bypassed in succession would receive claims and could become extremely disloyal and/or the ringleaders of the rebellion.
It would give the player more flexibility in determining his heir, something that a real Ruler would have had, while also modeling the destabilizing effects that something like that would have had, historically.