the first king of England. Æthelstan's legislation shows how the king drove his officials to do their respective duties. He was uncompromising in his insistence on respect for the law. However this legislation also reveals the persistent difficulties which confronted the king and his councillors in bringing a troublesome people under some form of control. His claim to be "king of the English" was by no means widely recognised. The situation was complex: the Hiberno-Norse rulers of Dublin still coveted their interests in the Danish kingdom of York; terms had to be made with the Scots, who had the capacity not merely to interfere in Northumbrian affairs, but also to block a line of communication between Dublin and York; and the inhabitants of northern Northumbria were considered a law unto themselves. It was only after twenty years of crucial developments following Æthelstan's death in 939 that a unified kingdom of England began to assume its familiar shape. However, the major political problem for Edmund and Eadred, who succeeded Æthelstan, remained the difficulty of subjugating the north. In 959 Edgar is said to have "succeeded to the kingdom both in Wessex and in Mercia and in Northumbria, and he was then 16 years old" (ASC, version 'B', 'C'), and is called "the Peacemaker". By the early 970s, after a decade of Edgar's 'peace', it may have seemed that the kingdom of England was indeed made whole. In his formal address to the gathering at Winchester the king urged his bishops, abbots and abbesses "to be of one mind as regards monastic usage . . . lest differing ways of observing the customs of one Rule and one country should bring their holy conversation into disrepute". Athelstan's court had been an intellectual incubator. In that court were two young men named Dunstan and Æthelwold who were made priests, supposedly at the insistence of Athelstan, right at the end of his reign in 939. Between 970 and 973 a council was held, under the aegis of Edgar, where a set of rules were devised that would be applicable throughout England. This put all the monks and nuns in England under one set of detailed customs for the first time. In 973, Edgar received a special second, 'imperial coronation' at Bath, and from this point England was ruled by Edgar under the strong influence of Dunstan, Athelwold, and Oswald, the Bishop of Worcester. Æthelred