Heres my Toulousian empire in misc mod .74 in the Peace of God campaign. The three most powerful nations are me, Scotland, The Netherlands, and Jerusalem.
I was shocked with the Netherlands were formed, i dont think ive ever seen the AI form it and last. Or even better become powerful.
Europe is religiously in trouble. Ive converted most of my neighbors to Cartharism. Scotland is fully Anglican, and the reformation is killing the rest of Europe. The emperor (the Netherlands) cant do much about keeping people Catholic because most of their provinces are now reformed. Its only a matter of time till they are reformed. Even Italian nations like Naples are converting to Protestantism.
Mid way through the game i decided to edit the holy war cb so it gives more infamy per province captured. This slowed Jerusalem's expansion. If i didnt All of arabia would be theirs and all of North Africa would be Alexandrian or Portugese