Title
- Trattato dei sette vizi capitali1
- Trattato delle proportioni et proportionalità1
- Travels of Marco Polo1
- Treatise on astrolabes1
- Treatise on evil deeds1
- Treatise on forest law1
- Treatise on marriage1
- Treatise on poverty1
- Treatise on the Decalogue1
- Treatise on the authority of vicars1
- Treatise on the seven deadly sins1
- Treatise on words1
- Treatises on the nobility1
- Triumphs1
- Troades1
- Trotula1
- Trumpet or [organ?] tablature, music notation principally to accompany sacred texts1
- Unigenitus Dei Filius1
- Ut autem non sillogizetur.1
- Varii artis veterinariae scriptores graeci1