Author
- Cicero1
- Clare of Assisi1
- Clement VII1
- Coluccio Salutati1
- Cyril of Jerusalem1
- Dorotheus of Gaza1
- Eastern Orthodox Church1
- Engelbert of Admont1
- Ephrem the Syrian1
- Francesco Barbaro1
- Georg von Peuerbach1
- Giovanni Bonsignori1
- Gregory IX1
- Guido delle Colonne1
- Guillaume de Lanicia1
- Haymo of Halberstadt1
- Herbert of Auxerre1
- Hugh of Saint Victor1
- Iachetus Italianus1
- Jacopone da Todi1