William FitzOsbern, 1st Earl of Hereford Earl of Wessex Lord of Breteuil

Abt 1020 - 1071  (51 years)

• Name	William FitzOsbern
  Suffix	1st Earl of Hereford Earl of Wessex Lord of Breteuil
  Birth	Abt 1020
  Gender	Male
  _MILT	1066	Battle of Hastings, England
  Reference Number	16247
  Death	1071
  Person ID	I16247	KLD Genealogy
  Last Modified	6 Mar 2026

  
  

  Father	Osbern, The Steward
  Relationship	biological
  Mother	Emma of Ivry
  Relationship	biological
  Family ID	F5969	Group Sheet  |  Family Chart

  
  

  Family	Adeliza de Tosny
  Children	1. Emma de Breteuil, Countess Consort of Norfolk  [Father: biological]  [Mother: biological]   2. William de Breteuil, Abbot of Breteuil Saint   d. 1130, Breteuil, Normandy  [Father: biological]  [Mother: biological]   3. Roger de Breteuil, 2nd Earl of Hereford,   b. 1056   d. Aft 1087 (Age > 32 years)  [Father: biological]  [Mother: biological]
  Family ID	F5970	Group Sheet  |  Family Chart
  Last Modified	6 Mar 2026