Title
- Treatise on the Decalogue1
- Treatise on the authority of vicars1
- Treatise on the candelabrum2
- Treatise on the seven deadly sins1
- Treatise on words1
- Treatises on the nobility1
- Tristia2
- Triumphs3
- Troades1
- Trotula1
- Trumpet or [organ?] tablature, music notation principally to accompany sacred texts1
- Tusculanae disputationes4
- Uffizio della mercanzia of Florence1
- Unidentified4
- Unigenitus Dei Filius1
- Universis Sancte Matris Ecclesie Filiis ad quos presentes littere pervenerint. Nos miseracione divina Guilelmus Antibarensis . . . archiepiscopus1
- Unknown28
- Ut autem non sillogizetur.1
- Vaticinia de Summis Pontificibus3
- Verbum abbreviatum3