- Papacy--Prophecies1
- Papal documents3
- Papal encyclicals17
- Papal nuncios2
- Paper1
- Part songs, Latin1
- Paste paper bindings1
- Paul IV, Pope, 1476-15592
- Pedro I, King of Castile and Leon, 1334-13691
- Pedro IV, King of Aragon, 1319?-13871
- Penance1
- Penitentials1
- Persian poetry1
- Personal correspondence1
- Petrarca, Francesco, 1304-13741
- Peucer, Kaspar, 1525-16021
- Pezel, Christoph, 1539-16041
- Philip II, King of Spain, 1527-15982
- Philip III, King of Spain, 1578-16211
- Philip IV, King of France, 1268-13141