Lambert II, Count of Lens

Lambert of Boulogne ( † 1054 at Phalampin in the Battle of Lille) was Count of Lens and by marriage, Count of Aumale. He was the son of Count Eustace I of Boulogne and Matilda of lions. He married Adelaide of Normandy, daughter of Duke Robert I of Normandy from the House of Rolloniden

When William of Talou, Count of Arques, 1053 revolted against his nephew, Duke William II of Normandy, the Flemish nobility of kinship reasons affected: Baldwin V of Flanders, father in law of the Duke, turned on its side while Enguerrand II of Ponthieu, Lord of Aumale, who was related to both sides, and Lamberts brother Eustace II of Boulogne opted for the insurgents. Lambert turned out, the example of his sovereign, the Count of Flanders, following the side of the duke.

The rebellion soon collapsed, Enguerrand was killed in October 1053 and William of Talou fled to Boulogne. Lambert was married as a reward for his loyalty with Enguerrands widow Adelaide, the half-sister of the Duke and of the law, he became Count of Aumale.

Lambert remained in the service of the Count of Flanders, and took in 1054 at the Battle of Lille against the Emperor Henry III. in part, in which he was mortally wounded. Adelheid kept Aumale, Lens fell back to his brother Eustace II. His daughter Judith, who was either just born or even came only after his death to the world married, and later ( 1070) Waltheof II, Earl of Northumbria.