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Male Geoffrey I Duke of BRITTANY Click to view Geoffrey I Duke of BRITTANY in the family tree

Geoffrey I Duke of was born about 0980 in Rennes, Ille-et-Vilaine. Bretagne, France.  Geoffrey I Duke of's father was Conan I Duke of BRITTANY and his mother was Ermengarde d' ANJOU.  His paternal grandparents were Judicael (Juhel) II Berenger Comte de RENNES and Gerberge UNKNOWN.  He was an only child.  He died on November 20th, 1008 in Nantes, Loire-Atlantique, Anjou/Pas-de-Calais de la Loire, France.


Geoffrey I Duke of's family with Hawise of  Normandy

They had a son named Geoffroi de.