Author
- Georg von Peuerbach1
- Giovanni Boccaccio1
- Gregory IX1
- Gregory of Tours1
- Guido de Monte Rochen1
- Guido delle Colonne1
- Guillaume de Lanicia1
- Haimo of Auxerre1
- Hanns von Saher1
- Hans Jacob Lupin1
- Haymo of Halberstadt1
- Heinrich Stegmüller1
- Henri Bohic1
- Henry Suso1
- Hirsh Kunrat1
- Hugh Ripelin of Strasburg1
- Humbert of Romans1
- Innocent VIII1
- Isaak ben Meïr from Düren1
- Isidore of Seville1