Duncan Family Tree
Man
| Name | Place of Birth | Date of Birth | Place of Death | Date of Death |
|---|---|---|---|---|
 Emperor of the Roman Empire Flavius Valerius Marcian |
Dardani, Republika Srpska, Bosnia and Herzegovina | 3/31/0250 | Eboracum, Yorkshire, England | 7/25/0306 |
Woman
| Name | Place of Birth | Date of Birth | Place of Death | Date of Death |
|---|---|---|---|---|
 Helena |
0200 |
Children
| Name | Place of Birth | Date of Birth | Place of Death | Date of Death |
|---|---|---|---|---|
| The Great, Emperor of Rome St. Constantine I |
Naissus, Serbia | 2/27/0272 | Ancyrona, near Nicomedia, Bithynia [now İzmit, Turkey]) | 5/22/0337 |