The article at

http://www.huffingtonpost.com/2013/02/14/st-malachy-last-pope-prophecy-theologians-prediction-_n_2679662.html?icid=maing-grid7%7Caim%7Cdl22%7Csec1_lnk2%26pLid%3D270352 lists 3 more Cardinals with the name Peter. Pierre is the French name for Peter, and Pedro is the Portuguese or Spanish name for Peter.  However, only Jean-Pierre (Peter) Ricard can be considered as a candidate to be the Pope because the other two cardinals named Nasrallah Pierre Sfeir and Pedro Rubiano Saenz are older than 80 years and cannot partake in the papal conclave.

 

The article states, "There are no Pietros among the living cardinals; two Pierres (as second name): Nasrallah Pierre Sfeir and Jean-Pierre Ricard; and one Pedro: Rubiano Sáenz," according to librarian Salvador Miranda, creator and producer of the website The Cardinals of the Holy Roman Church."

 

I don't know why Salvador Miranda says there are no Pietros among the living Cardinals because Cardinal Tarcisio Pietro Bertone has the middle name of Pietro (Peter.)  So far we having the 6 Cardinals with the first name or middle name of Peter who are eligible to be candidates for the next pope:

 

Peter Turkson from Ghana, Peter Erdo from Hungary, Tarcisio Pietro (Peter) Bertone, Secretary of State; Camerlengo of the Holy Roman Church,  Bechara Boutros (Peter) al-Rahi (Rai) from Lebanon, Odio Pedro (Peter) Scherer from Brazil, and Jean-Pierre (Peter) Ricard from France.  It looks like Cardinal Bertone is the only 1 of these 6 candidates that are living in Rome.