- Khilāṭī, Muḥammad ibn ʻAbbād, -1254. Talkhīṣ al-Jāmiʻ al-kabīr1
- Khujandī, ʻAlī, d. ca. 1427. Quṣārá fī al-taṣrīf1
- Kitāb fī al-fiqh al-Shāfiʻī1
- Kloster Medingen1
- Lamberto, Jacopo di1
- Lanaiolo, Gherardo1
- Land grants1
- Land tenure--Law and legislation1
- Land titles1
- Land titles--Registration and transfer1
- Laterino, Cristoforo1
- Laterino, Pietro1
- Latin language, Medieval and modern1
- Latin language--Orthography and spelling1
- Latin letters, Medieval and modern1
- Latin literature, Medieval and modern1
- Latin literature--Study and teaching1
- Laughter--Religious aspects--Islam1
- Le Fèvre, Jean, approximately 1320-approximately 13901
- Leases1