Family
ClaimDetailEvidence
FatherRobert II, Duke of Normandy (e1001-1035) [S756] [S2855] [S3164]
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MotherHerleve (e1002-) [S756] [S2855] [S3164]
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SpouseMathilde de Flandre (~1032-1083) 
Child +Adela of Normandy (~1062-1137) [S756] [S916] [S2718]
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Child +Henry Beauclerc I, King of England (1068-1135) [S756] [S2718] [S2719]
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Attributes
ClaimDetailEvidence
GenderMale
NameWilliam I, King of England [S756] [S2718] [S2719] [S2855] [S3164]
Nickname: William the Conqueror
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NameWilliam the Conqueror [S915] [S1335]
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NameWilliam I, the Conqueror, Duke of Normandy [S756]
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NameWilliam II, of Normandy [S756]
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NameWilliam I, of England [S756:164]
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NameGuillaume de Normandie II, Duke of Normandy [S2718] [S2855] [S3164]
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FatherRobert II, Duke of Normandy (e1001-1035) [S756] [S2855] [S3164]
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MotherHerleve (e1002-) [S756] [S2855] [S3164]
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Timeline
ClaimDateDetailAgeEvidence
Birth1027/28Château de Falaise, Normandy, France [S2718] [S2855] [S3164]
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Title1035Duke of Normandy [S756] [S2718] [S2855]
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Marriage 1050 - 1052Mathilde de Flandre (~1032-1083) [S3164]
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Marriage1053Mathilde de Flandre (~1032-1083) [S756]
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TitleDec 25, 1066King of England [S756] [S2718] [S2855] [S3164]
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DeathSep 9, 1087Priory of St. Gervais, Rouen, Normandy, France [S756] [S2718] [S2855] [S3164]
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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).
[S1335] Baldwin, Stewart, "The Henry Project - William the Conqueror" (undated (last site update June 20, 2010)) (https://fasg.org/projects/henryproject/data/henry001.htm).
[S2718] Cawley, Charles, "Foundation of Medieval Genealogy (Medieval Lands - England Kings 1066-1837)" (v4.1 Updated 24 November 2019).
[S2719] Cawley, Charles, "Foundation of Medieval Genealogy (Medieval Lands - Brabant & Louvain)" (v4.5 Updated 11 October 2019) (https://fmg.ac/Projects/MedLands/BRABANT, LOUVAIN.htm).
[S2855] Cawley, Charles, "Foundation of Medieval Genealogy (Medieval Lands - Norman Dukes)" (https://fmg.ac/Projects/MedLands/NORMANDY.htm).
[S3164] Cawley, Charles, "Foundation of Medieval Genealogy (Medieval Lands - Flanders: Hainaut)" (v4.10 Updated 11 December 2023) (https://fmg.ac/Projects/MedLands/FLANDERS, HAINAUT.htm).
Kinship Lines for William I, King of England
Spouse/PartnerDegreeRelationshipMRCA
Mathilde de Flandre (~1032-1083)93rd Cousin 1x removedFulk II, Count of Anjou (e912-958)
Mathilde de Flandre (~1032-1083)93rd Cousin 1x removedGerberge (e913-<952)
Mathilde de Flandre (~1032-1083)125th CousinHerbert de Vermandois II, Count of Vermandois and Troyes (~880-943)
Mathilde de Flandre (~1032-1083)125th CousinLiegarde of France (e887-)