- Serfdom1
- Serfs--Emancipation1
- Sermons1
- Settala, Ludovico, 1552?-16331
- Siena (Italy). Balia1
- Soderini, Piero, 1452-15221
- Sognia, Antonio de1
- Sognia, Enrico de1
- Sognia, Francesco de1
- Spain--Castile1
- Spannocchi, Ambrosio1
- Spiritual life--Catholic Church1
- Sveti Nikola (Abbey : Šibenik, Croatia)1
- Theology, Doctrinal1
- Thyestes, King of Olympia and Mycenae (Mythological character)1
- Toletanus, Alphonsus Corduba1
- Tranchedini, Nicodemo, 1413-14811
- Trierchi, Francesco1
- Truffaldi, Branca1
- Turkey1