- Maritime law1
- Monarchy1
- Nobility1
- Otto I, Holy Roman Emperor, 912-9731
- Pelayo, King of Asturias, -7371
- Philip II, King of Spain, 1527-15981
- Politics and government1
- Ramiro II, King of Leon, -9511
- Real property1
- Requesens, Antonio de'1
- Requesens, Berengario de'1
- Requesens, Bernardo de'1
- Requesens, Giuseppe de'1
- Roderick, King of the Visigoths, -711?1
- Salt industry and trade--Law and legislation1
- Sancho II, King of Castile and Leon, 1037 or 1038-10721
- Sancho IV, King of Castile and Leon, 1257-12951
- Specimens1
- Urraca, Infanta de Zamora, 1033?-11011
- codices (bound manuscripts)1