Keywords
- Legal instruments1
- Letters, Papal1
- Ludwig IV, Holy Roman Emperor, 1282?-13471
- Manners and customs1
- Manuscript fragments1
- Manuscripts1
- Manuscripts, Greek1
- Manuscripts, Italian1
- Manuscripts, Provençal1
- Manuscripts, Yiddish1
- Marriage (Roman law)1
- Massachusetts--Boston1
- Materia medica, Vegetable1
- Mathematics1
- Maxims1
- Meditations1
- Merchants1
- Military art and science1
- Music theory1
- Music, Greek and Roman1