Author
- Cornelius Nepos1
- Council of Basel1
- Cristoforo di Guidantonio de Piccolomini1
- David Abudirham1
- David of Augsburg1
- De Lazara, Nicoló1
- Del Carretto1
- Dimitrios Chalkokondyles1
- Diogenes Laërtius1
- Diogenes of Sinope1
- Diya al-Din al-Maqdisi1
- Dominican Order1
- Dominicus de Ragusia1
- Domizio Calderini1
- Donato Acciaioli1
- Duchy of Milan1
- Duns Scotus1
- Durandellus1
- Eberhard of Béthune1
- Edward IV of England1