- Manuel I, King of Portugal, 1469-15211
- Manuscripts1
- Manuscripts, Latin (Medieval and modern)1
- Manuscripts, Portuguese1
- Manuscripts, Spanish1
- Maria Anna Josefa, Queen, consort of John V, King of Portugal, 1683-17541
- Missions1
- Monarchy1
- Mosteiro de S. Mónica (Lisbon, Portugal)1
- Netherlands1
- Pelayo, King of Asturias, -7371
- Philip II, King of Spain, 1527-15981
- Philip III, King of Spain, 1578-16211
- Philip IV, King of Spain, 1605-16651
- Plague1
- Portugal1
- Portugal--Lagos1
- Ramiro II, King of Leon, -9511
- Roderick, King of the Visigoths, -711?1
- Sancho II, King of Castile and Leon, 1037 or 1038-10721