- Rueda, Luis de, active 1553-15691
- Rueda, Rodrigo de, active 1553-15691
- Rufina, Saint, -approximately 2871
- Sacraments--Catholic Church1
- Salt industry and trade--Law and legislation1
- Sanchez de Bustamente, Luis1
- Sancho Garcés I, King of Navarre, -9251
- Sancho IV, King of Castile and Leon, 1257-12951
- Seals1
- Seals (Numismatics)1
- Sepúlveda, Juan Ginés de, 1490-15731
- Silver clasp plates1
- Silver mines and mining1
- Slavery1
- Smelting1
- Societies1
- Sonnets1
- Sonnets, Spanish1
- Spain--Alpujarras1
- Spain--Andalusia1