Title
- Roman de la rose1
- Roman law1
- Rosarium1
- Rule of Saint Clare1
- Ruralia commoda1
- Sacramentary1
- Saint Patrick's Purgatory1
- Sarum manual1
- Satires1
- Somme le roi1
- Speculum Christiani1
- Speculum doctrinale1
- Speculum judiciale1
- Student notebook1
- Summa de poenitentia et matrimonio1
- Summa summarum1
- Tenures1
- Text on the government of France under Henry IV1
- Texts against heresy1
- Theotokarion1