Baudouin de Boulogne was born on an unknown date to Arnoul III de Boulogne (?-990) and died 1033 of unspecified causes. Notable ancestors include Charlemagne (747-814), Alfred the Great (849-899). Ancestors are from France, Germany, Belgium, the United Kingdom.
Siblings
| Offspring of Arnoul de Boulogne and unknown parent | |||
| Name | Birth | Death | Joined with |
| Baudouin de Boulogne (-1033) | 1033 | Adelina van Holland (990-1045) (.nl) | |
| Arnoul IV de Ternois (?-c1019) | | ||
| Unknown de Therouanne (?-?) | |||
Children
| Offspring of Baudouin de Boulogne and Adelina van Holland (990-1045) (.nl) | |||
| Name | Birth | Death | Joined with |
| Eustache I de Boulogne (c995-1049) | 995 | 1049 | Mahaut de Louvain (c1001-c1049) |
Common ancestors of Baudouin de Boulogne (-1033) and Adelina van Holland (990-1045) (.nl)
- Alfred the Great (849-899)
- Baldwin I of Flanders (c835-879)
- Baldwin II of Flanders (c865-918)
- Ealhswith (c852-905)
- Judith (844-870)
- Ælfthryth of Wessex (?-929)
