Title
- Registrum epistolarum1
- Regula monachorum1
- Relatione del stato di Milano1
- Relationi de diversi ambasciatori1
- Report on Switzerland1
- Resurrection of Jesus Christ1
- Revelations1
- Rime di Timaute Frascerepnico in vita, e in morte di Elisa1
- Roman law1
- Romuleon1
- Rubricae1
- Rule of Jesuati of San Giusto alle mura1
- Rule of Saint Benedict1
- Régime du corps1
- Saint Dominic1
- Sayings1
- Scale of perfection1
- School miscellany1
- Scroll of Esther1
- Secreti medicinali1