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Geoffroi I de Bretagne, Duke of Brittany, was born 980 to Conan I of Rennes (927-992) and Ermengarde of Anjou (bef967-) and died 1008 of unspecified causes.

Marriage Alliance

The Duke of Brittany had been a major foe of the Duke of Normandy, but Richard II, Duke of Normandy (963-1027) forged a marriage alliance with Duke Geoffrey I of Brittany by marrying his sister Hawise of Normandy (c978-1034) to him and by his own marriage to Geoffrey's sister, Judith of Brittany (982-1017).[1] (See Siblings table below.)


Children


Offspring of Geoffroi de Bretagne and Hawise of Normandy (c978-1034)
Name Birth Death Joined with
Alain III de Bretagne (997-1040) 997 1 October 1040 Bertha de Blois (?-bef1085)
Éon I de Penthièvre (999-1079) 999 7 January 1079 Agnes de Cornouaille (?-?)
Adèle de Bretagne (c1001-1067) 1001 1067



Siblings


Offspring of Conan I of Rennes (927-992) and Ermengarde of Anjou (bef967-)
Name Birth Death Joined with
Geoffroi I de Bretagne (980-1008) 980 1008 Hawise of Normandy (c978-1034)
Judith of Brittany (982-1017) 982 1017 Richard II, Duke of Normandy (963-1027)
Judicael of Rennes (aft980-1037) 980 13 June 1037
Catualon of Rennes (aft980-1040) 980 1040
Hernod of Rennes (?-?)
Urvod of Rennes (?-?)









Footnotes (including sources)

Elrondlair

  1. ^ Neveux 2008, p. 74.
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