- Tancredus1
- Taviani, Alamanno1
- Taxation, Papal1
- Temperance and religion1
- Temperance--Biblical teaching1
- Tempio francescano di S. Lorenzo (Vicenza, Italy)1
- Terence1
- Testamentum (Francis, of Assisi, Saint)1
- Textile industry1
- Theodore, Bishop of Mopsuestia, approximately 350-428 or 4291
- Theological virtues1
- Theology, Practical1
- Theology--Early church1
- Theology--Study and teaching--Catholic Church1
- Thilla, Berto1
- Third Order Regular of St. Francis1
- Third Order Secular of St. Francis1
- Third orders1
- Thomas, à Becket, Saint, 1118?-11701
- Thomists1