- De mundo (Aristotle)1
- Deadly sins1
- Debtor and creditor1
- Della Rovere, Francesco Maria, duca d'Urbino, 1548-16311
- Detti, Giovanni Baptista1
- Devices (Provenance)1
- Devotio moderna1
- Di Giovanni, Francesco1
- Dialogues1
- Didactic literature, German1
- Dioceses1
- Dionysius, the Areopagite, Saint, active 1st century1
- Discoveries in geography1
- Discoveries in geography--French1
- Dispute resolution (Law)1
- Dissenters, Religious1
- Divination1
- Divine office1
- Divine office (Music)1
- Divine right of kings1