Geoffroy I. de BretagneAge: 33 years975–1008
- Name
- Geoffroy I. de Bretagne
Geoffroi I. dit Bérenger
- Name
- Geoffroi I. dit Bérenger
- Type
- also known as
| Birth | estimated as equal to wife's birth year about 975 53 25 |
| Birth of a sister | Judith de Bretagne about 977 (Age 2 years) |
| Death of a father | Conan I. de Bretagne June 27, 992 (Age 17 years) |
| Occupation | comte (count), duc (duke) between 992 and 1008 (Age 17 years) |
| Death | 1008 (Age 33 years) |
| Family with parents |
| father |
Conan I. de Bretagne Birth: estimated a gap of 25 years — about 922 25 Death: in battle — June 27, 992 — Conquereuil |
| mother |
Ermengarde d'Anjou Birth: estimated a gap of 25 years — about 950 25 |
| himself |
Geoffroy I. de Bretagne Birth: estimated as equal to wife's birth year — about 975 53 25 Death: 1008 |
|
-4 years younger sister |
Judith de Bretagne Birth: estimated as close to sibling(s) — about 977 55 27 Death: June 28, 1017 |
| Family with Havoise de Normandie |
| himself |
Geoffroy I. de Bretagne Birth: estimated as equal to wife's birth year — about 975 53 25 Death: 1008 |
| wife |
Havoise de Normandie Birth: estimated as close to sibling(s) — about 972 39 27 |