Geoffrey, Duke of Brittany was born 23 September 1158 to Henry II of England (1133-1189) and Eleanor of Aquitaine (1122-1204) and died 19 August 1186 in Paris, France of unspecified causes. He married Constance de Bretagne (1161-1201) July 1181 JL . Notable ancestors include Henry II of England (1133-1189), William I of England (1027-1087), Charlemagne (747-814), Hugh Capet (c940-996), Alfred the Great (849-899). Ancestors are from France, the United Kingdom, Germany, Belgium, the Netherlands, Russia, Ukraine.

Geoffrey became Duke of Brittany through marriage. He was possibly killed in a tournament.


Offspring of Geoffrey, Duke of Brittany and Constance de Bretagne (1161-1201)
Name Birth Death Joined with
Eleanor, Countess of Richmond (1184-1241) 1184 10 August 1241
Matilda of Brittany (c1185-c1185)
Arthur I, Duke of Brittany (1187-1203) 29 March 1187 1203

Common ancestors of Geoffrey, Duke of Brittany (1158-1186) and Constance de Bretagne (1161-1201)

  1. Duncan I of Scotland (1001-1040)
  2. Edward Æþeling of England (1016-1057)
  3. Fulk IV, Count of Anjou (1043-1109)
  4. Henry I of England (1068-1135)
  5. Malcolm III of Scotland (c1031-1093)
  6. Margaret of Wessex (c1045-1093)
  7. Matilda of Flanders (c1031-1083)
  8. Matilda of Scotland (c1080-1118)
  9. William I of England (1027-1087)

Footnotes (including sources)

‡ General


  John Kenney