I generally hate the "Who is P" thing but I really do think this Pietro Parolin is a candidate for P.
Malachi Martin's book Windswept House begins with a ceremony to enthrone Satan in the Vatican in 1963. He claims this actually happened. There is an unnamed Vatican official, who is expert at all ceremonial tasks, called the Guardian of the Prince. In that book the Cardinal Secretary of State appears to be a very important NWO figure.
I came up with two current candidates for the Guardian of the Prince in the present time - both P's. One is Pietro Parolin, Cardinal Secretary of State. The other is Pierbattista Pizzaballa, pro Grand Prior of the Order of the Holy Sepulchre and SMOM.