Author
- Henry VI of England1
- Henry VIII of England1
- Honorat Bovet1
- Honorat de Bueil, seigneur de Fontaines1
- Hugh Bigod, 3rd Earl of Norfolk1
- Hugh of Saint Victor1
- Iachetus Italianus1
- Igreja e Convento de Santa Maria de Aguiar1
- Innocent III1
- Innocent IV1
- Isaac ben Joseph of Corbeil1
- Isaiah di Trani1
- Isidore of Seville1
- Jacob of Serugh1
- Jacobus de Cessolis1
- James of Milan1
- Jean de Meun1
- Jean de Roquetaillade1
- Joachim Bendel1
- Johannes Lemp1