 
				Rennes, Geoffrey de I
| Birth Name | Rennes, Geoffrey de I 1 | 
| Gender | male | 
| Age at Death | 28 years, 10 months, 19 days | 
| Birth date | 980 (Rennes, Ille at Vilaine, Bretagne, Kingdom of France) | 
| Death date | 20 November 1008 (Anjou, Isere, Rhone-Alpes, Kingdom of France) | 
Events
| Event | Date | Place | Description | Sources | 
|---|---|---|---|---|
| Birth | 980 | Rennes, Ille at Vilaine, Bretagne, Kingdom of France | ||
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| Death | 20 November 1008 | Anjou, Isere, Rhone-Alpes, Kingdom of France | 1 | |
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| Burial | Pontorson, Departement de la Manche, Basse-Normandie, France | 1 | ||
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Parents
| Relation to main person | Name | Birth date | Death date | Relation within this family (if not by birth) | 
|---|---|---|---|---|
| Father | Rennes de Bretagne, Conan de I Berenger Le Tort Duc | 944 | 16 June 1017 | |
| Mother | Bretagne, Ermengarde de Duchesse de Anjou | 952 | 27 June 1022 | |
| Rennes, Geoffrey de I | 980 | 20 November 1008 | ||
| Sister | Bretagne, Judith de | 21 March 982 | 16 June 1017 | |
| Father | Rennes de Bretagne, Conan de I Berenger Le Tort Duc | 944 | 16 June 1017 | |
| Stepmother | Anjou, Gerberga D | |||
| Stepfather | , Conan I Duke of Bretagne | 944 | 27 June 992 | |
| Mother | Bretagne, Ermengarde de Duchesse de Anjou | 952 | 27 June 1022 | |
Families
| Family of Rennes, Geoffrey de I and Bretagne, Havise De | |||||||||||||||||||||||
| Married | Wife | Bretagne, Havise De ( * 977 + 21 February 1034 ) | |||||||||||||||||||||
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| Children | |||||||||||||||||||||||
| Name | Birth Date | Death Date | 
|---|---|---|
| Rennes, Alan de III | 997 | 1 October 1040 | 
 
						 
						 
						 
								 
								 
								 
								 
								 
										