• English Princess
  • Duchess Consort of Brittany

Constance of Normandy was born circa 1066 to William I of England (1027-1087) and Matilda of Flanders (c1031-1083) and died circa 1090 of poisoning. She married Alain Fergent de Bretagne (c1060-1119) 1087 JL . William I of England (1027-1087), Charlemagne (747-814), Hugh Capet (c940-996), Rollo of Normandy (860-932), Alfred the Great (849-899)/s, Charlemagne (747-814)/s, Rollo of Normandy (860-932)/s.

Constance of Normandy was a daughter of William the Conqueror and Matilda of Flanders. She was a Princess of England by birth and also Duchess of Brittany through her marriage to Alan IV, Duke of Brittany.

It was said she was the most highly gifted of all of the Conqueror's daughters. As she was the favourite of her mother, she was offered later in marriage, in 1086, to Alan IV of Brittany, and the two were married at Caen, Normandy. Constance died childless, perhaps poisoned, on 13 August 1090, and was buried in the Church of Église Saint-Melaine, in Rennes.

In 1672, her tomb was discovered and opened. Inside were some fragments of a woollen material which at the time the body had been wrapped in and a leaden cross with her epitaph engraved with the name of her father, husband, and date of death.


#g1: Offspring of William I of England (1027-1087) and Matilda of Flanders (c1031-1083)
Name Birth Death Joined with
Robert III, Duke of Normandy (c1051-1134) 1051, (Normandy) 10 February 1134, (Cardiff Castle+ Glamorganshire+ Wales) Sybilla of Conversano (-1103)
Richard of Normandy (c1054) 1054, Normandy 1081, New Forest, Hampshire
Adeliza of Normandy (c1055) 1055, Normandy 1065,
Cecilia of Normandy (c1055) 1055, Normandy, France 30 July 1126, Caen, Calvados, France
William II of England (c1056-1100) 1056, Normandy, France 2 August 1100, New Forest, England, United Kingdom
Matilda of Normandy (c1061-1086) 1061, Normandy, France 1086, France
Adela of Normandy (c1062) 1062, Normandy, France 8 March 1138, Marcigny, Saône-et-Loire, France Stephen II, Count of Blois (c1045-1102)
Agatha of Normandy (c1064) 1064, 1079,
Constance of Normandy (c1066-1090) 1066, 1090, Alain Fergent de Bretagne (c1060-1119)
Henry I of England (1068-1135) 13 June 1068, Selby, Yorkshire, England, United Kingdom 1 December 1135, St. Denis-le-Fermont near Gisors, Picardy, Lyons-la-Forêt, Eure, France Ansfrid (1070-) + Matilda of Scotland (c1080-1118) + Sybil Corbet (1077-) + Edith (bef1135-) + Gieva de Tracy (bef1135-) + Nest ferch Rhys (c1073-aft1136) + Isabel de Beaumont (bef1135-) + Adeliza of Leuven (1103-1151)


Footnotes (including sources)

Rtol, MainTour