- Law, Medieval1
- Law--Interpretation and construction1
- Lawyers1
- Manuel I, King of Portugal, 1469-15211
- Manuscript waste1
- Manuscripts1
- Manuscripts, Dutch1
- Manuscripts, English1
- Manuscripts, French1
- Manuscripts, German1
- Manuscripts, Portuguese1
- Maria Anna Josefa, Queen, consort of John V, King of Portugal, 1683-17541
- Merchants1
- Methodology1
- Middle Ages1
- Middle East--Jerusalem1
- Middle East--Jerusalem (Latin Kingdom)1
- Missions1
- Mosteiro de S. Mónica (Lisbon, Portugal)1
- Naples (Kingdom)1