Author
- Kalonymus ben Kalonymus1
- Kamal al-Din ibn al-Humam1
- Khayr al-Dīn Khalīl1
- Khvājah Muḥammad Pārsā1
- Khālid ibn ʻAbd Allāh al-Azharī1
- Kingdom of England1
- Konrad III. von Soltau1
- Laurentius Cynthius1
- Leo Archpriest1
- Leo I1
- Leonardo Mainardi1
- Lorenzo Bonincontri1
- Louis XII of France1
- Luca Pacioli1
- Lucius Fenestella1
- Ludovicus Valentia de Ferraria1
- Lydgate, John, 1370?-1451?1
- Majd ad-Dīn Ibn Athir1
- Manyas Oǧlu1
- Manṣūr Ibn-Muḥammad Ibn-Aḥmad1