The word "dux" is usually translated by the Old English word ealdorman. Cnut made the Norwegian, Eric of Hlathir, ealdorman ("earl" in Scandinavian terms) in southern Northumbria. Kentish losses included Sigehelm, ealdorman of Kent and father of Edward's third wife, Eadgifu. The title ealdorman was replaced by the Danish "eorl" (later earl) over time. He would then be what in later Anglo-Saxon terminology could be described as an ealdorman. Osferth witnessed royal charters from 898 to 934, as an ealdorman between 926 and 934. Eadric held his position as Ealdorman of Mercia. Each Shire was governed by an Ealdorman. Eadric was appointed the Ealdorman of Mercia in 1007. He was ealdorman in or before 930. Wallingford became the chief town of Berkshire and the seat of the county's Ealdorman. Osbert is now the oldest son of Ealdorman Uhtred and is re-christened Uhtred. Sussex seems to have had its own ealdorman for much of the 10th century. Ealdorman Waltheof was too old to fight and remained in his castle at Bamburgh.