- Manuscripts, Catalan1
- Marriage1
- Massachusetts--Boston1
- Missouri--Saint Louis1
- Montalvan, Alonso de1
- Monte, Leonora Concini, marchesa di1
- Montferrand, Charles de1
- Muslims1
- Muñiz de Orellana, Francisco1
- Muñiz, Gonzalo1
- Nobility--Genealogy1
- Ortiz family1
- Pablo de Santa Maria, Bishop of Burgos, approximately 1351-14351
- Painted bindings1
- Passion of Jesus Christ1
- Pelagianism1
- Philip II, King of Spain, 1527-15981
- Philip III, King of Spain, 1578-16211
- Philip IV, King of Spain, 1605-16651
- Poetry1