Family
ClaimDetailEvidence
FatherHumphrey de Bohun VIII, 4th Earl of Hereford (~1276-1322) [S756] [S954]
research
MotherElizabeth Plantagenet (1282-1316) [S756] [S954]
research
SpouseElizabeth de Badlesmere (1313-1356) 
Child +Elizabeth de Bohun (e1341-1385) [S756] [S954]
research
Attributes
ClaimDetailEvidence
GenderMale
NameWilliam de Bohun , 1st Earl of Northampton [S756]
research
NameSir William de Bohun , K.G. [S756]
research
NameWilliam de Bohun , Earl of Northampton [S954]
research
NameWilliam de Bohun [S954] [S3168]
research
FatherHumphrey de Bohun VIII, 4th Earl of Hereford (~1276-1322) [S756] [S954]
research
MotherElizabeth Plantagenet (1282-1316) [S756] [S954]
research
Timeline
ClaimDateDetailAgeEvidence
Birth 1310 - 1312England [S756]
research
Birthabt 1312 [S954]
research
Marriage 1335 - 1338Elizabeth de Badlesmere (1313-1356) [S756]
research
Marriage License1335Elizabeth de Badlesmere (1313-1356) [S954] [S3168]
research
TitleMar 16, 1336/371st Earl of Northampton [S756] [S954]
research
PositionJun 12, 1338Constable of England [S954]
research
DeathSep 16, 1360 [S756] [S954]
research
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).
[S954] Cawley, Charles, "Foundation of Medieval Genealogy (Medieval Lands - England Earls 1067-1122)" (2006-7 (v1.1 Updated 23 April 2007)).
[S3168] Cawley, Charles, "Foundation of Medieval Genealogy (Medieval Lands - English Lords, A-C)" (v4.14 Updated 06 June 2024) (https://fmg.ac/Projects/MedLands/ENGLISHNOBILITYMEDIEVAL3.htm).
Kinship Lines for William de Bohun, 1st Earl of Northampton
Spouse/PartnerDegreeRelationshipMRCA
Elizabeth de Badlesmere (1313-1356)104th CousinWilliam Marshal I, 3rd Earl of Pembroke (~1146-1219)
Elizabeth de Badlesmere (1313-1356)104th CousinIsabel de Clare Countess of England (e1172-1220)
Elizabeth de Badlesmere (1313-1356)135th Cousin 1x removedWilliam de Braiose, 5th Baron of Braiose (e1151-1211)
Elizabeth de Badlesmere (1313-1356)135th Cousin 1x removedMathilde de Saint-Valéry (e1151-1210)
Elizabeth de Badlesmere (1313-1356)156th Cousin 1x removedHenry Beauclerc I, King of England (1068-1135)
Elizabeth de Badlesmere (1313-1356)177th Cousin 1x removedMaud, Countess of Huntingdon (~1072-~1131)
Elizabeth de Badlesmere (1313-1356)188th CousinRoger de Montgomery, Earl of Shrewsbury (e1025-1094)
Elizabeth de Badlesmere (1313-1356)188th CousinSimon de Montfort I, Seigneur of Montfort L’Amaury (e1030-~1087)
Elizabeth de Badlesmere (1313-1356)188th CousinAgnes d’Evreux (e1031-)
Elizabeth de Badlesmere (1313-1356)188th CousinMabel de Bellême (e1026-1079)
Elizabeth de Badlesmere (1313-1356)209th CousinRichard Vicomte d’Avranches (e1007-)
Elizabeth de Badlesmere (1313-1356)219th Cousin 1x removedGuy de Montlhery (e1015-1095)
Elizabeth de Badlesmere (1313-1356)219th Cousin 1x removedHodierne de Gometz-la-Ferté (e1016-)
Note
CP-IX-682