- Definition (Philosophy)1
- Della Rovere, Francesco Maria, duca d'Urbino, 1548-16311
- Demosthenes1
- Dentelle bindings1
- Dervishes1
- Detti, Giammaria6
- Detti, Giovanbattista8
- Detti, Giovanni Baptista1
- Devices (Heraldry)2
- Devices (Provenance)1
- Devil--Islam1
- Devonshire, Edward Courtenay, Earl of, 1526-15561
- Devotio moderna1
- Devotion to the Blessed Virgin Mary1
- Devotional literature23
- Devotional literature, Italian2
- Devotional literature, Latin (Medieval and modern)2
- Devotional literature, Sanskrit1
- Di Giovanni, Francesco1
- Dialectic12