[Mithras]

I wander about the whole sovereign death thing; my rather fuzzy memory suggests that the game had a dynastic focus, especially in regards to diplomacy. So the simple solution would be to make full use of that and require that you have an heir to keep playing if your sovereign dies. This could lead to a more interesting diplomatic system, what if you married your only heir to a competing royal family, what are the consequences of having an underage heir and so on.

Just seems as though the developers aren't thinking everything through from what I can see.