- Italy--Reggio Emilia1
- Italy--Reggio Emilia (Province)1
- Jesuits1
- John IV, King of Portugal, 1604-16561
- John Manuel, Prince of Portugal, 1537-15541
- John V, King of Portugal, 1689-17501
- Juana, of Austria, Princess of Portugal, 1535-15731
- Lafões, Pedro Henrique de Bragança, Duque de, 1718-17611
- Lawyers1
- Manuel I, King of Portugal, 1469-15211
- Manuscripts, Latin1
- Manuscripts, Portuguese1
- Marginalia1
- Maria Anna Josefa, Queen, consort of John V, King of Portugal, 1683-17541
- Middle East--Jerusalem1
- Middle East--Jerusalem (Latin Kingdom)1
- Missions1
- Mosteiro de S. Mónica (Lisbon, Portugal)1
- Naples (Kingdom)1
- Netherlands1