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Osborn de Bolbec II

Osborn de's father is Walter de Giffard Earl of Buckingham Lord of Longueville and his mother is Agnes Flatel. His paternal grandparents are Osborn de Bolebec Lord de Giffard and Avelina De Crepon; his maternal grandparents are Gerrard Flatel (Fleitel) and <Unknown>. He had a brother and two sisters, named Walter, Rohaise De and Adelaide De.

Ancestor Pedigree Chart
- Geoffrey De Bolbec (Norman)
  - b.~
  
  Osborn de Bolebec Lord de Giffard
  
  Walter de Giffard Earl of Buckingham Lord of Longueville
  - b.~  0990
  
  King Gorm of Denmark
  
  King Harald Gormsson "Blaatand (Bluetooth)" of Denmark I
  
  Herbastus De Crepon
  - b.~  0911
  
  Olaf Bjornsson
  - b.~  0885
  
  Queen Gyrithe (Cyrid) Olafsdotter.
  
  Avelina De Crepon
  
  Queen Cyrid of Sweden
  - b.~  0923
  
  Osborn de Bolbec II
  
  Gerrard Flatel (Fleitel)
  
  Agnes Flatel

Details of Osborn de's family with Avelina De Normandy