What is Pope John Paul's last name?
There are two Pope John Pauls: the name of the first before he
became pope was Albino Luciani. The more more famous John Paul II's
baptismal name was Karol Wojtyla. Benedict XVI's was Joseph
Ratzinger. Like a woman who takes her husband's name upon marriage,
the new pope takes a religious name which then becomes his "real"
name from that point onwards although when the pope signs legal
documents he likely must sign his birth name since other religious,
like monks and nuns who take religious names, must use their birth
names on secular, legal documentation.