- Dominical letters1
- Domitian, Emperor of Rome, 51-961
- Domus Misericordie (Siena, Italy)1
- Donati, Verdiano1
- Doti, Domenico1
- Dream interpretation1
- Drycthelm, monk of Northumbria, active 7th century1
- Dudley family1
- Dulaert, Johannes1
- Durandus, of Saint-Pourçain, Bishop of Meaux, approximately 1275-13341
- Duti, Gaspare1
- Duti, Pratese1
- Duti, Sessa1
- Dyes and dyeing1
- Ecclesiastical geography1
- Eder, Georg, 1524-15871
- Education, Ancient1
- Education--Philosophy1
- Edward IV, King of England, 1442-14831
- Egypt1