Commentary
Cawley does not list Emma as a daughter of Geoffrey and Havise.
Family
ClaimDetailEvidence
FatherGeoffroy de Bretagne, Duke of Brittany (~980-1008) [S1694:744]
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MotherHavise de Normandie (e979-1034) [S1694:744]
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SpouseIvo, Viscount of Contentin (e996-) 
Child +Nigell, 1st Baron of Halton (e1031-) [S1694:690]
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Attributes
ClaimDetailEvidence
GenderFemale
NameEmma [S1694:744]
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FatherGeoffroy de Bretagne, Duke of Brittany (~980-1008) [S1694:744]
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MotherHavise de Normandie (e979-1034) [S1694:744]
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Timeline
ClaimDateDetailAgeEvidence
Birth 997 - 1008France [S756] [S915]
parents married abt 996, father died 1008
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Sources
IndexTitle
[S756] Weis, Frederick Lewis, "Ancestral Roots of Sixty Colonists Who Came To New England before 1700, 7th Ed." (Genealogical Publishing Co., Inc., Baltimore, 1999).
[S915] Cawley, Charles, "Foundation of Medieval Genealogy (Medieval Lands - Brittany: Dukes)" (2006-7 (v1.3 Updated 21 July 2007)) (https://fmg.ac/Projects/MedLands/BRITTANY.htm).
[S1694] Ormerod, George, "The History of the County Palatine and City of Chester, Volume 1" (1819) (https://books.google.com/books?id=DYY1AQAAMAAJ).