- Czech Republic--Brno1
- David, King of Israel1
- Dawwānī, Muḥammad ibn Asʻad, 1426 or 1427-1512 or 15131
- De finibus bonorum et malorum (Cicero, Marcus Tullius)1
- De pomo (Aristotle)1
- Dead--Religious aspects--Islam1
- Death--Religious aspects--Catholic Church1
- Deeds1
- Devotion to the Blessed Virgin Mary1
- Devotional literature, French1
- Devotional literature, Italian1
- Didactic literature, English (Middle)1
- Diet1
- Dioceses1
- Divine office (Music)1
- Divorce (Islamic law)1
- Duarte, King of Portugal, 1391-14381
- Education1
- Education of princes1
- Education, Greek1