- Qāʼit Bāy, Sultan of Egypt and Syria, -14961
- Rabīʻ al-abrār (Zamakhsharī, Maḥmūd ibn ʻUmar)1
- Raffaello, Niccolò di1
- Rainbows1
- Raised bands1
- Ramadan1
- Rawḍat al-nāẓir wa-jannat al-munāẓir (Ibn Qudāmah, Muwaffaq al-Dīn ʻAbd Allāh ibn Aḥmad)1
- Regiomontanus, Joannes, 1436-1476. Calendarium1
- Registers (Lists)1
- Relations1
- Religion--Philosophy1
- Religions1
- Religious drama, French1
- Religious ethics1
- Religious literature, Italian1
- Religious poetry1
- Rent (Islamic law)1
- Renzi, Betto1
- Renzi, Lello1
- Repentance1