- Kifāyat al-ḥuffāẓ (Ibn al-Hāʼim, Aḥmad ibn Muḥammad)1
- Kings and rulers--Duties1
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- Kirchmair, Georg, 1481-15541
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- Knotesford, John, -15891
- Kyi︠e︡vo-Pechersʹka lavra1
- Kyriales1
- Kyrie eleison (Music)1
- Kārtavīryārjuna (Hindu deity)1
- Kātī, Ḥusām al-Dīn al-Ḥasan, -1358 or 1359. Qāla aqūl1
- Ladino language1
- Lamaʻāt (ʻIrāqī, Fakhr al-Dīn Ibrāhīm)1
- Lamoignon de Basville, M. de (Nicolas), 1648-17241
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- Lang, Matthäus, 1468-15401
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