Also known as William the Conqueror and William the Bastard.
King of England (by conquest)
Duke of Normandy
Events
(probable) Date of Birth: 1027 or 1028.
(probable) Place of Birth: Falaise.
The date and place are given by Bates and by Baldwin.
Date of Death: 9 September 1087.
Place of Death: the priory of St Gervais, near Rouen.
The date and place are given by Bates and by Baldwin.
Place of Burial: the abbey church of St-Étienne at Caen.
Relationships
Father: Robert I of Normandy (died 1035).
This relationship is given by Bates and by Baldwin.
Mother: Herleva.
This relationship is given by Bates and by Baldwin.
Spouse: Matilda of Flanders (died 1083). Probably married in 1050 or 1051.
This relationship is given by Bates, by van Houts, by Green (pp. 47-49), and by Baldwin.
Children:
(Complete source citations for facts about the children on this page are currently outside of the scope of this project. Most information below comes from Baldwin.)
Robert “Curthose” (1051 or 1052 - 10 February 1134) married Sibyl de Conversano. Robert was duke of Normandy.
Richard (died between 1069 and 1074).
Adelaide, a nun.
Cecily (1058 or 1059 - 1127), abbess of Holy Trinity, Caen.
William II “Rufus” (died 2 August 1100), king of England 1087 - 1100.
Matilda.
Constance (died 1090) married Alan IV, count of Brittany.
Adela (died 1137) married Étienne, count of Blois in 1080.
Henry I (1067 or 1068 - 1135) married (1) Matilda of Scotland on 11 November 1100; married (2) Adeliza of Louvain on 29 January 1121. Henry was king of England and duke of Normandy.
References
Baldwin, Stewart. “William 'the Conqueror' (Guillaume 'le Conquérant')"” in The Henry Project.
Bates, David. “William I (1027/8 - 1087)” in the Oxford Dictionary of National Biography. (Oxford University Press, 2004).
Green, Judith A.. “Duchesses of Normandy” in Normandy and Its Neighbours: 900 to 1250 (Belgium: Brepols, 2011).
van Houts, Elisabeth. “Adelida” in The Oxford Dictionary of National Biography (2004).
van Houts, Elisabeth. “Matilda (d. 1083)” in the Oxford Dictionary of National Biography. (Oxford University Press, 2004).