Title
- Recipes1
- Recipes and extracts on alchemy, medicine, metal-working, cosmetics, veterinary science, agriculture, wine-making, and other subjects1
- Records1
- Register1
- Registrum Gregorii1
- Registrum epistolarum1
- Regula monachorum1
- Relatione del stato di Milano1
- Relationi de diversi ambasciatori1
- Religious text1
- Report on Switzerland1
- Resurrection of Jesus Christ1
- Revelations1
- Ritual1
- Roman law1
- Romuleon1
- Rubricae1
- Rule of Jesuati of San Giusto alle mura1
- Rule of Saint Benedict1
- Saint Dominic1