Family
ClaimDetailEvidence
FatherRoger de Clare, 3rd Earl of Hertford (e1135-1173) [S756] [S925]
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MotherMatilda de Saint-Hilaire (e1138-) [S756] [S925]
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Spouse 2ndGeoffrey fitz Piers, 4th Earl of Essex (e1159-1213) 
Child +Hawise fitz Geoffrey (e1207-<1244) [S756] [S3175]
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Child +Sir John fitz Geoffrey, Lord of Hallamshire (e1207-1258) [S756] [S759] [S925]
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Attributes
ClaimDetailEvidence
GenderFemale
NameAveline de Clare , Countess of Essex [S1805]
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NameAveline de Clare [S756] [S925]
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FatherRoger de Clare, 3rd Earl of Hertford (e1135-1173) [S756] [S925]
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MotherMatilda de Saint-Hilaire (e1138-) [S756] [S925]
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Timeline
ClaimDateDetailAgeEvidence
Birthest 1170 (1167-1173)
 
Marriage 2ndbef May 29, 1205Geoffrey fitz Piers, 4th Earl of Essex (e1159-1213) [S756] [S925]
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Death Nov 22, 1220 - Jun 5, 1225 [S756] [S925]
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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).
[S925] Cawley, Charles, "Foundation of Medieval Genealogy (Medieval Lands - England Earls 1138-1143)" (2006-7 (v.1.1 Updated 26 Jun 2006 )).
[S1805] Richardson, Douglas, "Medieval Genealogy Newsgroup: C.P. Correction: Margaret le Gras (not Marshal), wife of Ralph de Somery and Maurice de Gant" (GEN-MEDIEVAL-L Mailing List, March 27, 2012 through April 16, 2012) (http://archiver.rootsweb.ancestry.com/th/read/GEN-MEDIEVAL/2012-03/1332897079).
Note
Married 1st, William de Munchanesy of Swanscombe