lol, What?

I guess you mean you want a save game where someone is playing the English and the Pope has "aquired" a lot of territory? It is possible that someone could make a small mod file for you to use temporarily.

It is straightforward but a considerable amount of work but someone could give the pope a lot of territory. Maybe sicily, italy, and the HRE? That would make the pope a powerhouse!! You could slip the modified version into the right folder and after you've played your campaign replace it with the original version.