- Riccomanni, Simone1
- Riddles, Arabic2
- Right of property (Jewish law)1
- Rites and ceremonies in the Bible1
- Rituals1
- Robert, King of Naples, approximately 1275-13431
- Roman Civil War (Rome : 43-31 B.C.)1
- Roman law2
- Roman law--Interpretation and construction1
- Romances8
- Romances, Latin (Medieval and modern)2
- Rome (Empire)4
- Rosselmini, Giovanni1
- Rosselmini, Gregorio Tommaso1
- Ruch, Georgius, fl. 1438-14411
- Rules1
- Rural conditions2
- Russia leather bindings3
- Rāfiʻī, ʻAbd al-Karīm ibn Muḥammad, 1162-1226. ʻAzīz ʻalá al-Wajīz2
- Sacraments1