Author
- Haimo of Auxerre1
- Henricus de Ratisbona1
- Henry of Langenstein1
- Hugh of Fouilloy1
- Hugh of Saint-Cher1
- Innocent III1
- Isidore of Seville1
- Johannes Gherinx1
- John Cassian1
- John of Glastonbury1
- John of Howden1
- Julian of Toledo1
- Leon Battista Alberti1
- Ludovicus Valentia de Ferraria1
- Maffeo Vegio1
- Naldo Naldi1
- Peter Damian1
- Peter Lombard1
- Petrus Riga1
- Pius II1