Saints - P

Papacy = The Bishop of Rome, known as the Pope, is the head of the Roman Catholic Church and all her affiliates. He is also widely believed to be the Pontifex Maximus of the Priest Order, the high priest who alone holds rank over the Metropolitans. 
Peter & Paul = These two Saints need no introduction.
Petitioner = Petitioners are a special class of Adepts who may or may not develop supernatural traits from Degree progression, but instead from the interaction with a specific type of Supernatural. Priests develope supernatural abilities from the Saints they venerate, Archangels receive them as gifts from Celestial Patrons, etc. 
Polycarp of Smyrna = Defender of the Faith and Patron Saint of those suffering dysentery and ear aches. Because if its one thing that goes along with heresy, it's major ailments of the body... For more info see Polycarp of Smyrna.
Priestcraft = See Priestcraft.
Priesthood = The second of the Three Branches of the Priestly Order. The Priests are the best known of the Branches and are also the largest. Unfortuantely, their power has been wanning for some time now and they keep finding themselves shackled to hyper-conservative political parties who always seem to be half-way out the door? 
*The Popes by Rupert Mathews is a great introductory book for those who want to wade into the history of the Papacy.