You were told at least part of what the problem was in the edit summaries. Please don't ignore such things in the future. You'll learn a lot about how things are done here if you read the links in the welcome message up top.

In any event, this change you want to make was discussed to death a long time ago. Like it or not  and I don't  when people think of Pope they mean the Pope of Rome, overwhelmingly. Usual Wikipedia practice in such cases is to give the most common meaning the unqualified title and to point to the disambiguation page in a hatnote, which is the current state of things wrt these articles. '''' (talk) (contribs)