Author
- Confraternity of Saint Eulalia and Saint Gênes1
- Confraternity of St. Silvester (Zadar, Croatia)1
- Constantine the African1
- Cornelius Nepos1
- Cyprian1
- Cyriacus, Bishop of al-Bahnasā1
- Daffyd ap Philip1
- Damasus I1
- David Kimhi1
- David of Augsburg1
- Diego de San Pedro1
- Dimitrios Chalkokondyles1
- Diodorus Siculus1
- Donato Acciaioli1
- Dorotheus of Gaza1
- Duchy of Milan1
- Eadmer1
- Edmund of Abingdon1
- Edward of Norwich, 2nd Duke of York1
- Einhard1