| Geoffrey I | |
|---|---|
| Born | c. 980 Rennes, County of Rennes,Duchy of Brittany |
| Died | 20 November 1008 Nantes, Loire-Atlantique, Pays de la Loire, France |
| Burial | Brittany |
| Spouse | Hawise |
| Issue | Alan III, Duke of Brittany Odo, Count of Penthièvre |
| House | House of Rennes |
| Father | Conan I, Duke of Brittany |
| Mother | Ermengarde-Gerberga of Anjou |
Geoffrey I (c. 980 – 20 November 1008), also known asGeoffrey of Rennes andGeoffrey Berengar, wasDuke of Brittany from 992 until his death, and alsoCount of Rennes (ruler of the Romano-Frankishcivitas of Rennes) by right of succession. The eldest son of DukeConan I of Brittany, he assumed the title of Duke of Brittany upon his father's death in 992. Brittany had long been an independent state, but he had little control over much ofLower Brittany.[a]
Geoffrey was the son of Duke Conan I, by his marriage toErmengarde-Gerberga of Anjou.[2] He was the grandson ofJudicael Berengar, Count of Rennes.
When Geoffrey succeeded to Brittany he had several problems:
In 996, at about the age of sixteen, Geoffrey entered into a dynastic alliance withRichard II, Duke of Normandy,[3] with a diplomatic double marriage between the two houses. The church-sanctioned marriage ceremonies were held atMont Saint-Michel, on the Breton-Norman border, and while Geoffrey marriedHawise of Normandy,[4] daughter ofRichard I of Normandy and sister of Richard II. Richard marriedJudith of Brittany, Geoffrey's sister.
Geoffrey and Hawise had four children:
Geoffrey died on 20 November 1008 while travelling on a pilgrimage to Rome.[5]
Geoffrey I, Duke of Brittany House of Rennes Born: 980 Died: 20 November 1008 | ||
| Regnal titles | ||
|---|---|---|
| Preceded by | Duke of Brittany 992–1008 | Succeeded by |
| Preceded by | Count of Rennes 992–1008 | Succeeded by |
 | This biography of a French peer or noble is astub. You can help Wikipedia byexpanding it. |
