Title
- Rule of Saint Benedict1
- Sacra poesis1
- Sacramentary1
- Saint Anne and the Virgin Mary1
- Sapiential books1
- Sefaretname-yi Muhib Efendi1
- Sentence1
- Sequentiary1
- Service book1
- Seven Penitential Psalms1
- Siddur1
- Somnium viridarii1
- Song of Solomon1
- Speculum historiale1
- Speeches1
- Stichoi peri zōōn idiotētos1
- Student notebook1
- Summa de casibus poenitentia1
- Summa de poenitentia et matrimonio1
- Summa de virtutibus1