- Oviedo, Gregorio de, 1721-17961
- Oviedo, Nicolás de, 1725-1
- Patronage, Ecclesiastical1
- Penmanship, German1
- Perez Barahona, Juan, active 1560-15621
- Philip II, King of Spain, 1527-15981
- Poetry1
- Politics and government1
- Pontificals1
- Portraits1
- Privileges and immunities, Ecclesiastical1
- Processionals (Liturgical books)1
- Processionals (Service books)1
- Registers (Lists)1
- Regula (Augustine, of Hippo, Saint)1
- Rendón y Sarmiento family1
- Romero family1
- Rueda family1
- Rueda, Baltasar de, active 1553-15691
- Rueda, Bernardino de, active 1553-15691