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Thomas Duke of Clarence

Thomas Duke of Clarence's father was King Henry IV and his mother was Mary of Bohun. His paternal grandparents were John of Gaunt and Blance of Lancaster. He had three brothers named King Henry V, John Duke of Bedford and Humprey Duke of Goucester.

Ancestor Pedigree Chart
- King Edward I ^*
  - b.1239 d.1307
  
  King Edward II
  
  Eleanor of Castille
  - b.1244 d.1290
  
  King Edward III
  
  Philip IV King of France ^*
  
  Isabelle
  
  Joan of Navarre
  
  John of Gaunt
  
  Jan II d'Avesnes Count of Holland ^*
  
  Willem III
  - b.1286 d.1337
  
  Philippa of Holland & Hainault
  - b.1314 d.1396
  
  King Henry IV
  
  Blance of Lancaster
  
  Thomas Duke of Clarence
  
  Mary of Bohun
  
  ^*There are earlier generations for the ancestor(s) indicated. See their page(s) for details (click name)