- San Miniato, Tommaso di1
- San Salvatore al Monte (Monastery : Florence, Italy)1
- Sansedoniis, Guccia de1
- Santa Maria Novella (Church : Florence, Italy)1
- Santi, Matteo di1
- Satire, Greek1
- Satire, Latin1
- Satirical literature1
- Scanderbeg, 1405?-14681
- Science, Medieval1
- Scolari, Giovanni degli1
- Scotland--West Lothian1
- Scriptoria1
- Scriptum super IV libros Sententiarum (Thomas, Aquinas, Saint)1
- Scrolls1
- Scyld (Legendary character)1
- Seals (Numismatics)1
- Seals, wax1
- Sebastian, Saint1
- Sequences (Liturgy)1