- Requesens, Francesco de'1
- Requesens, Galcerando de'1
- Requesens, Giuseppe de'1
- Requesens, Ludovico de'1
- Requesens, Luigi de'1
- Requesens, Salvatore Francesco de'1
- Requesens, Salvatore de'1
- Requesens, Vincenzo de'1
- Responsa1
- Ressano, Catterina1
- Ressano, Giovanni1
- Resurrection of Jesus Christ1
- Rhetoric1
- Rhetoric, Medieval1
- Ricchi, Raphael Immanuel ben Abraham Ḥai, 1688-17431
- Ricciardi, Taddeo1
- Rites and ceremonies1
- Rithmomachia (Game)1
- Rochefort Demoulin, Louis1
- Roman Civil War (Rome : 43-31 B.C.)1