What was the name of William the Conqueror's wife?

William the Conqueror’s wife was Matilda of Flanders.

Matilda was the daughter of Baldwin V, Count of Flanders, and Adela of France, a granddaughter of Robert II of France. Her ancestry gave her exceptional status among European nobility, making the marriage a valuable political alliance for William, who was then Duke of Normandy and still faced questions about his legitimacy.

William and Matilda married around 1051 or 1052. Their union initially faced opposition because church authorities considered them related within the prohibited degrees of kinship. A papal dispensation was granted in 1059 after the couple agreed to found religious houses, including the Abbaye aux Dames and Abbaye aux Hommes at Caen.

Matilda became queen of England after William’s conquest and was crowned at Westminster Abbey on 11 May 1068. She also acted as regent in Normandy during William’s absences and supported the education of their children. The couple had at least nine children who survived to adulthood, including future kings William II and Henry I.