Published by:
International Society of Royal Descendants - Bloodroyal and Sangreal
Constance of Normandy - abt 1057

Constance de Normandie b: bet: 1057-1061 at Normandie - She died on 13 August 1090 at Bretagne, France, poisoned by her servants.2 She was buried at Church of St. Melans, Rhedon, Bretagne, France.
 

Marriages 
Alain IV Fergent de Bretagne, Duc de Bretagne
son of
Noel de Cornuaille, Comte de Cornuaille and Hawise de Bretagne, in 1086 at Caen, Normandie,
 
Children 
 
Siblings 
 
Parents 
William I 'the Conqueror', King of England & Matilda de Flandre