Title
- Report on Switzerland1
- Report on the conclave electing Alexander VII1
- Reports1
- Request1
- Rerum vulgarium fragmenta, etc. : in Italian with some Latin].1
- Rerum vulgarium fragmenta, etc. : in Italian].1
- Responsorium : in Latin with German additions].1
- Resumptio1
- Revelations2
- Rhetorica ad Herennium6
- Ribhu gīta3
- Riduttione delli sette Salmi penitentiali in sette sonnetti1
- Rights and privileges of the bishops of Breslau1
- Rime3
- Rime trionfi1
- Risālah11
- Risālah al-dāmighah lil-fāsiq2
- Risālah al-istidlālīyah1
- Risālah al-jiddīyah li-Ibn Zaydūn al-Andulusī wa-sharḥuhā1
- Risālah al-mawsūʻah bi-al-alfīyah1