- Dedications1
- Definition (Philosophy)1
- Della Rovere, Francesco Maria, duca d'Urbino, 1548-16311
- Demosthenes1
- Dentelle bindings1
- Detti, Giovanni Baptista1
- Devices (Provenance)1
- Devil--Islam1
- Devonshire, Edward Courtenay, Earl of, 1526-15561
- Devotio moderna1
- Devotion to the Blessed Virgin Mary1
- Devotional literature, Sanskrit1
- Di Giovanni, Francesco1
- Dialogues (Literature)1
- Didactic literature, German1
- Dioceses1
- Dionysius, the Areopagite, Saint, active 1st century1
- Diplomacy1
- Diplomatic and consular service, Venetian1
- Diplomatic relations1