- Summa theologica (Thomas, Aquinas, Saint)1
- Switzerland--Lucerne1
- Tax collection1
- Taxation, Papal1
- Teodósio, Prince of Portugal, 1634-16531
- Textile industry1
- Theology1
- Theology, Doctrinal1
- To 15161
- Toletanus, Alphonsus Corduba1
- Traditional medicine1
- Traditional medicine--Formulae, receipts, prescriptions1
- Tragedies (Seneca, Lucius Annaeus)1
- Transmutation (Chemistry)1
- Treviso (Italy). Podestà1
- Trials (Heresy)1
- Trials, litigation, etc.1
- Trierchi, Francesco1
- Truthfulness and falsehood1
- Turkey--Istanbul1