Alfred the Great necessary, that each man keep carefully his oath and his pledge" which expresses a fundamental tenet of Anglo-Saxon law. Alfred devoted considerable attention and thought to judicial matters. Asser underscores his concern for judicial fairness. Alfred, according to Asser, insisted upon reviewing contested judgments made by his ealdormen and reeves and "would carefully look into nearly all the judgements which were passed [issued] in his absence anywhere in the realm to see whether they were just or unjust". A charter from the reign of his son Edward the Elder depicts Alfred as hearing one such appeal in his chamber while
Æthelbald, King of Wessex at the Battle of Hingston Down, reducing Cornwall to the status of a client kingdom. He died in the following year and was succeeded by his son Æthelwulf, who appointed his eldest son Æthelstan as sub-king of Kent, Essex, Surrey and Sussex, in the same year. Æthelbald was the second son of King Æthelwulf and probably of his first wife Osburh, who was the mother of Alfred the Great. As Æthelstan was old enough to be appointed king ten years before Alfred was born in 849, and Æthelbald took part in battle in 851, some historians argue that it is