There are a number of pope names that have been used only once. Peter, the name of the first pope, is one and Francis, the name of the current (2013) pope, is another example.
the least popular girl name in the world is Timber.
as a female name is one of the least popular names
Maura
popo
luella
Abigail wright
AnneRenee
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.
doytch
Pope Gregory I had at least one brother but his name and fate are unknown.
The Black Pope's birth name is Shelly Pope.
Paulie, for Parots at least. For other birds..... i have no clue at all what is the most popular name for 'em!