Judith of Lens (born Normandy, between 1054 and 1055 - died Fotheringhay, c. 1090) was a niece of William the Conqueror.
She was a daughter of Lambert II, Count of Lens and Adelaide of Normandy (Countess of Aumale), the sister of William the Conqueror.
Some sources claim that Judith betrayed Waltheof to the bishop of Winchester, who informed her uncle, the king.
After Waltheof's execution, Judith was betrothed by William to Simon I of St. Liz, 1st Earl of Northampton.
Judith refused to marry Simon and fled the country to avoid William's anger.
Those eight manors, scattered around the ten counties, may have been used by Judith as homes when visiting her various estates.
Judith founded Elstow Abbey in around 1078, as a Benedictine nunnery, possibly as a memorial to Waltheof.
Given these strong local connections, it is possible that Judith's primary home may have been at the manor at Kempston.
Judith also founded a church at Hitchin and Elstow Abbey held a large amount of her property in that area.
In (Cockayne) HATLEY Countess Judith holds 3 hides and 2½ virgates as one manor.