Well, #4 is clearly incorrect.
yup. Rome and the Holy Roman Empire period.
http://www.christianitytoday.com/ch/1990/issue28/2824.html?start=2
http://www.britannica.com/EBchecked/topic/640848/Western-Schism
Yep, 3 rival Popes. Interesting.
“Would have to search for the history, but werent there rival Popes that declared each other heretics?”
No. There were rival men claiming to be pope. There’s a difference.