- John V, King of Portugal, 1689-17501
- Juana, of Austria, Princess of Portugal, 1535-15731
- Kings and rulers1
- Lafões, Pedro Henrique de Bragança, Duque de, 1718-17611
- Law1
- Liturgics--Texts1
- Lyric poetry1
- Manuel I, King of Portugal, 1469-15211
- Manuscript fragments1
- Manuscripts, Aramaic1
- Manuscripts, English1
- Manuscripts, Italian1
- Manuscripts, Latin (Medieval and modern)1
- Maria Anna Josefa, Queen, consort of John V, King of Portugal, 1683-17541
- Missions1
- Missions, Portuguese1
- Monasticism and religious orders1
- Mosteiro de S. Mónica (Lisbon, Portugal)1
- Nautical charts1
- Netherlands1