I am playing as a one province count in India. I have murdered the heirs of Rashtrakuta until the grandchildren of the king are the only males left in the dynasty tree other than the king himself. Now that all the traditional heirs are dead, the line of succession is-
The duke currently second in the realm tree, with 19% of the king's forces, Steward, 8 provinces The duke fifth in the realm tree with 15%, Spymaster, 10 provinces The duke fourth in the tree with 16%, 11 year old, 9 provinces
And so on like this. Is there a preference for councilors? What drives succession after the direct heirs are dead?