- Theology, Doctrinal--Middle Ages1
- Therapeutics1
- Thomas de Grinham1
- Thomas, à Becket, Saint, 1118?-11701
- Tolls1
- Torah scrolls1
- Traditional medicine1
- Traditional medicine--Formulae, receipts, prescriptions1
- Tragedies (Seneca, Lucius Annaeus)1
- Travel--Taxation1
- Trojan War1
- Turkey--Troy (Extinct city)1
- Usury1
- Uzzano, Alessandro da1
- Uzzano, Giovanni da, active 15th century1
- Vows1
- Water rights1
- Wellesley College Library1
- Wigmore Abbey (Wigmore, Herefordshire, England)1
- Willoughby, Richard, Sir1