- Knowledge, Theory of (Religion)1
- Kyriales1
- Ladron de Guevara family1
- Land tenure--Law and legislation1
- Land titles--Registration and transfer1
- Language and languages1
- Lapidaries (Medieval literature)1
- Latin language, Medieval and modern1
- Latin language--Etymology1
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- Latin literature, Medieval and modern1
- Latin poetry, Medieval and modern1
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- Leases1
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- Leicester, Robert Dudley, Earl of, 1532?-15881
- Leocadia, Saint, -3031
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