- Purgatory1
- Quadrants (Astronomical instruments)1
- Queens1
- Quotations1
- Qānūn fī al-ṭibb (Avicenna)1
- Raffaello, Niccolò di1
- Rebellion (Pisa, Italy : 1494-1509)1
- Registers (Lists)1
- Regula (Augustine, of Hippo, Saint)1
- Regula (Benedict, Saint, Abbot of Monte Cassino)1
- Religion--Philosophy1
- Religious drama, French1
- Religious literature, Italian1
- Religious poetry, Latin1
- Remoldus, Bishop of Ozilia1
- Renzi, Betto1
- Renzi, Lello1
- Requesens family1
- Requesens, Berengario de'1
- Requesens, Eleonora de'1