how many popes have there been

According to the Catholic Encyclopedia there were 265 popes while the
Vatican acknowledges 264

?The confusion arises around Stephen II (752) who died 3 days after
his election, but prior to his consecration.  The Vatican list does
not contain him, whereas the Catholic Encyclopedia?s list does.?

?The Vatican refers to Pope John Paul II as the 264th pope.  The
official list  is based on the definitive study of Popes,  completed
in 1947 by Msgr. Angelo Mercato, Director of the Vatican Archives. The
Vatican accepted and published his findings as the official list. 
This list and the Popes since then add up to 264.?

http://www.popechart.com/FAQ.htm#count


The Pope Chart includes these 264 Popes.   
http://www.popechart.com/Popelist.htm


The Catholic Encyclopedia list of Popes (265)
http://www.newadvent.org/cathen/12272b.htm



Search criteria:

list of Popes
://www.google.com/search?hl=es&c2coff=1&rls=GGLD%2CGGLD%3A2005-07%2CGGLD%3Aen&q=list+of+Popes&btnG=B%C3%BAsqueda&lr=


I hope this is helpful. 

Best regards,
Bobbie7