- Traditional medicine--Formulae, receipts, prescriptions1
- Tragedies (Seneca, Lucius Annaeus)1
- Tranchedini, Nicodemo, 1413-14811
- Transfiguration of Jesus Christ1
- Transubstantiation1
- Trapez, Jacobus1
- Treasure bindings1
- Tree calf bindings1
- Trenta, Francesco1
- Treviso (Italy). Podestà1
- Trials (Murder)1
- Trierchi, Francesco1
- Trigonometry1
- Trinity1
- Trinity--History of doctrines1
- Trionfi (Petrarca, Francesco)1
- Truffaldi, Branca1
- Truthfulness and falsehood1
- Tucci, Niccolò, 1908-19991
- Turkish Wars (Venice, Italy : 17th century)1