The current Pope Benedict XVI was named Joseph Aloisius Ratzinger at birth.
There have been 12 popes who have taken Pius as their name.
Prior to Benedict XVI there were 14 other popes with that name. Pope Benedict X was an antipope and does not count.
Popes do not elect cardinals, they name them.
There have been no popes named Jude.
There have been six popes named Adrian and six popes named Paul.
There have been 12 popes named Pius.
The vast majority of popes have been Italian. As of February of 2013 there have been only 18 popes from other countries.
There have been 23 popes named John but none with 21 as a maximum.
the popes live in the papal apartments in the apostic palace in vatican city
when a King takes another name than his first name (this happens more with Popes) the new name is called a regnal name
There have been 23 popes named John, the most popular name by far.The most popular name historically chosen by the popes is John. No less than 23 popes have taken the papal office under this name.
Benedict is the name used by 15 popes. Pope Benedict X was an antipope and not counted as a legitimate pope.