- Real property1
- Registers (Lists)1
- Rituals1
- Roderick, King of the Visigoths, -711?2
- Romances, Spanish1
- Rome (Empire)1
- Sacred vocal music4
- Sancho Garcés I, King of Navarre, -9251
- Sancho II, King of Castile and Leon, 1037 or 1038-10721
- Sancho IV, King of Castile and Leon, 1257-12952
- Sarmiento, Pero. Sentencia-Estatuto1
- Satire1
- Satires1
- Sententiarum libri IV (Peter Lombard, Bishop of Paris)1
- Sermons1
- Sermons, Spanish1
- Seven Years' War (1756-1763)1
- Seventeenth century2
- Shelf marks1
- Shipping1