- Graduals (Liturgical books)1
- Gregorian chants1
- Gregorian chants--Manuscripts1
- Guzman family1
- Guzman, Alfonso Perez de, 1256-13091
- Handbooks and manuals1
- Henry I, King of Castile, 1204-12171
- Henry II, King of Castile, 1333-13791
- Henry III, King of Castile and León, 1379-14061
- History, Modern1
- Illumination of books and manuscripts, Italian1
- Indic literature1
- Inscriptions, Latin1
- Iran--Shīrāz1
- Isidore, of Seville, Saint, -6361
- Islam1
- Islamic shrines1
- James, the Greater, Saint1
- Jesuit drama, Spanish1
- Jews1