- Manuscript maps1
- Manuscripts, Latin (Medieval and modern)1
- Manuscripts, Spanish1
- Maria Anna Josefa, Queen, consort of John V, King of Portugal, 1683-17541
- Meneses, Pedro de, Conde de Vila Real, -14371
- Mikveh1
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- Mosteiro de S. Mónica (Lisbon, Portugal)1
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- Plague1
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- Portuguese literature1
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- Seventeenth century1
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- Teodósio, Prince of Portugal, 1634-16531