- Philip II, King of Spain, 1527-15981
- Philip III, King of Spain, 1578-16211
- Philip IV, King of Spain, 1605-16651
- Politics and government2
- Portugal1
- Prophets1
- Ramiro II, King of Leon, -9511
- Reformation1
- Roderick, King of the Visigoths, -711?1
- Sancho II, King of Castile and Leon, 1037 or 1038-10721
- Sancho IV, King of Castile and Leon, 1257-12951
- Scrolls (information artifacts)1
- Scyld (Legendary character)1
- Seals1
- Spain14
- Spain--Aragon1
- Spain--Castile5
- Spain--Castilla y León3
- Spain--Covadonga1
- Spain--Granada1