Aubrey de Coucy (a.k.a. Alberic) was the earl of Northumbria from 1080 until about 1086. Aubrey de Coucy was a Norman from Coucy-le-Château-Auffrique, Aisne which was the inheritance of his wife, Ada, daughter of Letétard de Marle (himself a son of Count Ivo de Beaumont-sur-Oise). In 1080, William Walcher, bishop of Durham and earl of Northumbria, was murdered during a feud between his household knights and the old Northumbrian aristocracy. William the Conqueror then gave the earldom to Aubrey, a Norman baron from Coucy with large possessions in the midlands.