Title
- Tractatus de censuris ecclesiasticis1
- Tractatus de confessione1
- Tractatus de preparatione ad missas domini seraphici1
- Tractatus de tribus orbis partibus1
- Tractatus de virtutibus1
- Tragedia de la insigne reyna doña Ysabel1
- Tragedies1
- Transaction1
- Tratado de la comunidad1
- Trattato dei sette vizi capitali1
- Travel writings1
- Travels of Marco Polo1
- Treaties1
- Treatise on apples1
- Treatise on practical mathematical calculation1
- Treatises on the nobility1
- Trephologion1
- Tresor1
- Triumpho delle virtu1
- Troilus and Criseyde1