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1st son De Clare

1st son's father was Lord Richard De Tonbridge FitzGilbert of Clare De Clare and his mother is Rohaise De Clare. His paternal grandfather is Gilbert Crispin De Gilbert/Giselbert "Crispin", Count of Brionne and Eu Brionne and his paternal grandmother was Gunnora or Constance De Eu; his maternal grandparents are Earl Walter of Buckingham Giffard Knt and Ermentrude de. He had a half-brother and two half-sisters, named Gilbert FitzRichard, Rohaise Rohese FitzRichard and Rohaise De.

Ancestor Pedigree Chart
- William  Guillaume I de Normandy 2nd Duke of Normandy Longsword
  - b.~  0893
  
  Richard the Fearless Normandy I
  - b.0933
  
  Sprote de Senlis Sprota De Brittany
  - b.~  0911
  
  Godfroi or Geoffrey De Normandy
  
  Herbastus De Crepon ^*
  - b.~  0911
  
  Duchess Gunnora De Normandy
  - b.~  0946
  
  Queen Cyrid of Sweden
  - b.~  0923
  
  Gilbert Crispin De Gilbert/Giselbert "Crispin", Count of Brionne and Eu Brionne
  - b.~  0960
  
  Lord Richard De Tonbridge FitzGilbert of Clare De Clare
  - b.~  1030 d.~  1090
  
  Gunnora or Constance De Eu
  - b.~  0984 d.~  1031
  
  1st son De Clare
  
  Osborn de Bolebec Lord de Giffard ^*
  
  Walter de Giffard Earl of Buckingham Lord of Longueville
  - b.~  0990
  
  Avelina De Crepon ^*
  
  Sir Walter Giffard Knt
  - d.1102
  
  Gerrard Flatel (Fleitel)
  
  Agnes Flatel
  
  Earl Walter of Buckingham Giffard Knt
  
  Agnes De Ribemont
  
  Rohaise De Clare
  
  Ermentrude de
  
  ^*There are earlier generations for the ancestor(s) indicated. See their page(s) for details (click name)