'To be a medieval king was a job of work ... This was a man who knew how to run a complex organization. He was England's CEO'

The youngest of William the Conqueror's sons, Henry I came to unchallenged power only after two of his brothers died in strange hunting accidents and he had imprisoned the other. He was destined to become one of the greatest of all medieval monarchs, both through his own ruthlessness, and through his dynastic legacy. Edmund King's engrossing portrait shows a strikingly charismatic, intelligent and fortunate man, whose rule was looked back on as the real post-conquest founding of England as a new realm: wealthy, stable, bureaucratised and self-confident.

Edmund King is Emeritus Professor of Medieval History at Sheffield University. His books include a life of King Stephen, an edition of the Historia Novella of William of Malmesbury and Medieval England from Hastings to Bosworth.