Matilda Of Flanders (died 1083) was the queen consort of William I the Conqueror, whom she married c. 1053. During William’s absences in England, the duchy of Normandy was under her regency, with the aid of their son, Robert Curthose (see Robert II [Normandy]), except when he was in rebellion against his father. The embroidery of the Bayeux tapestry was once wrongly attributed to her.