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Pedigree: Geoffrey Duke of Brittany Plantagenet
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• Birthplace & Researcher
  color codes are below.
Ermentrude of Maine b.abt 1096 
Emma de Mortaigne b.abt 1066 
Researcher Legend

Birthplace Legend: Color codes are more or less chosen based on the east-west (lighter to darker) or south-north (lighter to darker) location in the country or state.