- Penance (Canon law)3
- Pentecost3
- Peter Lombard, Bishop of Paris, approximately 1100-11603
- Philosophers, Ancient3
- Piccolomini della Triana, Silvio, 1878-19623
- Piccolomini family3
- Piccolomini, Ascanio Francesco3
- Prayer--Catholic Church3
- Preaching3
- Prophecy3
- Psalms3
- Regula (Augustine, of Hippo, Saint)3
- Regula (Benedict, Saint, Abbot of Monte Cassino)3
- Religious poetry, English3
- Religious poetry, Latin3
- Rhetoric, Medieval3
- Rituals3
- Romances, Latin (Medieval and modern)3
- Saints--Cult3
- Salvation3