I've actually put a lot of thought in Dynasty to Dynasty relations and would like to put forward a suggestion.
- First, a Dynasty tab similar to Religion tab.
- Then, a Dynasty Head. The Matriarch or Patriarch of the Dynasty would also have powers similar to the Pope within it's dynasty. A Dynasty Head is determined by the Dynasty Succession Law. Those would be Elective, Seniority, Prestige and Primogeniture. The Dynasty head would have powers such as a parallel to Excommunication, Disinheriting.
- A disinherited person is a member of the dynasty in nothing but name. They are
- Removed from the line of succession within the dynasty. As are the person's children.
- Gains a CB on the Dynasty head to 'Depose Dynasty Head.' If successful, they become the Dynasty Head, and obviously they are reinherited. Or something.
- The Dynasty Head gains a CB on them, probably just a basic claim on all their titles.
- The Disinherited has a large opinion malus with the rest of the dynasty.
- Then, a Dynasty Score rating, accumulated by the score of all the members of the dynasty.
- Then a list of Dynasty members, and obviously the Dynasty Tree.
- A list of all other Dynasties and their Score and Dynasty to Dynasty Relations.
- Dynasty to Dynasty Relations are determined by relations of individual Dynasty members, with a modifier depending on the status of the character within the Dynasty (their score contribution).
- If Dynasty to Dynasty Relation is bad enough for a sufficient length, a new modifier is introduced, a.k.a Dynastic Rivalry.
- Dynastic Rivalry gives a malus to individual and Dynasty relations.
- Dynastic Rivalry gives a CB to the Dynasty members. This CB would not claim any land (as the dynasty does not have any actual claims, just a sustained rivalry) but would give a large amount of Prestige and Dynastic Score to the victors, as well as money, and decrease the Prestige and Dynastic Score of the losers considerably.
- This gives the opportunity for interesting inter-dynasty conflict, with each side attempting to fabricate claims, assassinate the opposing side, gain prestige, and such.
- Dynasty Heads give protection to all Dynasty members. Dynastic members can call the Dynastic Head to arms, who will in turn call the rest of the Dynasty, and denying the Call to Arms would give an opinion malus and make you lose prestige (making you vulnerable to Disinheriting).
- Members could set up something similar to the Anti-Pope, their own Dynasty Head, to challenge the existing Head.
- Dynasty members could also form their own dynasty branches, with the ability to maybe create an independent Dynasty from the main tree, with a personalized Coat of Arms, and such. I don't know about this one, but maybe.