- Oviedo family1
- Oviedo, Francisco de, 1728-1
- Oviedo, Gregorio de, 1721-17961
- Oviedo, Nicolás de, 1725-1
- Pablo de Santa Maria, Bishop of Burgos, approximately 1351-14351
- Painted bindings1
- Painted books1
- Palomino family1
- Passion of Jesus Christ1
- Patriotism1
- Pedro IV, King of Aragon, 1319?-13871
- Pelagianism1
- Perez Barahona, Juan, active 1560-15621
- Peru1
- Peru (Viceroyalty). Real Caja de Cuzco1
- Peru--Cuzco1
- Philip II, King of Spain, 1527-15981
- Philip III, King of Spain, 1578-16211
- Philip IV, King of Spain, 1605-16651
- Pictorial works1