- Pregnancy--Religious aspects--Judaism1
- Procedure (Law)1
- Property tax1
- Pythagoras and Pythagorean school1
- Rebellion (Pisa, Italy : 1494-1509)1
- Reformation1
- Regula (Benedict, Saint, Abbot of Monte Cassino)1
- Religious literature, Italian1
- Requesens, Antonio de'1
- Requesens, Berengario de'1
- Requesens, Bernardo de'1
- Requesens, Giuseppe de'1
- Ressano, Catterina1
- Ressano, Giovanni1
- Ricchi, Raphael Immanuel ben Abraham Ḥai, 1688-17431
- Ricciardi, Taddeo1
- Rites and ceremonies1
- Rithmomachia (Game)1
- Roman Civil War (Rome : 43-31 B.C.)1
- Romances, Italian1