A related question. The Chapel of the Saint, grants a +2 to Agitate, but you can only build it, if you are a temple domain.
Can a province ruler use the Chapel and get the bonus if he makes a treaty describing this with his local temple? - Or is it only the controlling temple that can claim the bonus?
What if the ruler is able to gain regency from temples?
What if the ruler owns a single temple holding? (well, probably a yes then, but for completeness its asked)