Another idea I have: If you're the Byzantines (or, I suppose, any Orthodox realm), when you hold Antioch, Jerusalem, or Alexandria, you could install a Patriarch (king-level Bishop, similar to Pope and Ecumenical Patriarch). The tier of title already exists, so thats a plus.
I'm looking at the Rising Empire mod to see how to create titles, but how would you go about creating a decision to create a title for another character? Specifically, a character that, in all likelyhood, isn't a direct vassal of yours (for example, Antioch starts the game in Byz hands, but the Bishop there is a vassal of the local Doux of Antioch, not the Emperor).
I'm looking at the Rising Empire mod to see how to create titles, but how would you go about creating a decision to create a title for another character? Specifically, a character that, in all likelyhood, isn't a direct vassal of yours (for example, Antioch starts the game in Byz hands, but the Bishop there is a vassal of the local Doux of Antioch, not the Emperor).