Author
- Cornelius Nepos1
- Council of Basel1
- Cyprian1
- David Abudirham1
- David of Augsburg1
- Dawūd al-Qayṣarī1
- Dimitrios Chalkokondyles1
- Diogenes Laërtius1
- Dominican Order1
- Dominicus de Ragusia1
- Domizio Calderini1
- Donato Acciaioli1
- Duchy of Milan1
- Duns Scotus1
- Durandellus1
- Eberhard of Béthune1
- Edward of Norwich, 2nd Duke of York1
- Einhard1
- Elias of Cortona1
- Elijah Bashyazi1