- Rites and ceremonies in the Bible1
- Rithmomachia (Game)1
- Rituals (Liturgical books)1
- Robert, King of Naples, approximately 1275-13431
- Robert, William1
- Rochefort Demoulin, Louis1
- Roger, of St. Albans1
- Roman capitals (Lettering)1
- Roman law--Interpretation and construction1
- Romanesque1
- Romans--Religion1
- Rome (Italy). Maestri delle Strade1
- Romera, Carlo1
- Rondinelli, Vieri de'1
- Rosary1
- Rosselmini, Giovanni1
- Rosselmini, Gregorio Tommaso1
- Rossi, Giovanni de'1
- Rossi, Girolamo1
- Rossi, Rosso1