- Diamonds1
- Diaries1
- Diarrhea1
- Dice--Religious aspects4
- Diced leather bindings1
- Dictators as authors1
- Dictionaries75
- Didactic literature, English (Middle)1
- Didactic literature, German1
- Didactic literature, Latin (Medieval and modern)1
- Didactic poetry, English (Middle)4
- Didactic poetry, Latin4
- Didactic poetry, Latin (Medieval and modern)1
- Digital images112
- Dini, Francesco1
- Dioceses2
- Diocletian, Emperor of Rome, 245-3131
- Dion, approximately 408 B.C.-354 B.C.1
- Dionysius, the Areopagite, Saint, active 1st century1
- Diplomatic documents1