There is only one real pope at a time.
In history there have been what are called "anit-popes" which are men that claim to be pope but are have not been elected to lead the church by the College of Cardinals. There have been 40 anitpopes in history with the most recent being in 1447, Felix V.
When the present pope, Benedict XVI, picked his name Catholic thought it curious because many of the antipopes where Benedicts and popes decided against it to pick the name for that reason
217 popes have been born in Italy.
196 popes have come from Italy.
There have been no popes named Jude.
There have been no popes named Kenneth.
I am sure there are many popes in Heaven but am equally sure that there are a number of popes burning in hell.
There have been 6 popes named Sixtus.
There have been 13 popes named Leo.
There have been 8 popes called Urban.
There were 38 popes before Anastasius I.
Roman Catholic Popes are descended from Peter, how can they be false? Please be more clear in your question and what you are referring to.
There have been 13 popes named Innocent.
Throughout history, there have been a few instances of popes who were married, but the majority of popes have been celibate.