Henry III was a medieval king whose long reign continues to have a profound impact on us today. He was on the throne for 56 years and during this time England was transformed from being the private play-thing of a French speaking dynasty into a medieval state in which the king answered for his actions to an English parliament, which emerged during Henry's lifetime. Despite Henry's central importance for the birth of parliament and the development of a state recognisably modern in many of its institutions, it is Henry's most vociferous opponent, Simon de Montfort, who is in many ways more famous than the monarch himself. Henry is principally known today as the driving force behind the building of Westminster Abbey, but he deserves to be better understood for many reasons - as Stephen Church's sparkling account makes clear. Part of the Penguin Monarchs series: short, fresh, expert accounts of England's rulers in a highly collectible format

Henry II (1154-89) through a series of astonishing dynastic coups became the ruler of an enormous European empire. One of the most dynamic, restless and clever men ever to rule England, he was brought down both by his catastrophic relationship with his archbishop Thomas Becket and his debilitating arguments with his sons, most importantly the future Richard I and King John. His empire may have ultimately collapsed, but in Richard Barber's vivid and sympathetic account the reader can see why Henry II left such a compelling impression on his contemporaries.

Edward III lived through bloody and turbulent times. His father was deposed by his mother and her lover when he was still a teenager; a third of England's population was killed by the Black Death midway through his reign; and the intractable Hundred Years War with France began under his leadership. Yet Edward managed to rule England for fifty years, and was viewed as a paragon of kingship in the eyes of both his contemporaries and later generations. Venerated as the victor of Sluys and Crécy and the founder of the Order of the Garter, he was regarded with awe even by his enemies. But he lived too long, and was ultimately condemned to see thirty years of conquests reversed in less than five. In this gripping new account of Edward III's rise and fall, Jonathan Sumption introduces us to a fêted king who ended his life a heroic failure.

No English king has so divided opinion, both during his reign and in the centuries since, more than Richard III. He was loathed in his own time for the never-confirmed murder of his young nephews, the Princes in the Tower, and died fighting his own subjects on the battlefield. This is the vision of Richard we have inherited from Shakespeare. Equally, he inspired great loyalty in his followers. In this enlightening, even-handed study, Rosemary Horrox builds a complex picture of a king who by any standard failed as a monarch. He was killed after only two years on the throne, without an heir, and brought such a decisive end to the House of York that Henry Tudor was able to seize the throne, despite his extremely tenuous claim. Whether Richard was undone by his own fierce ambitions, or by the legacy of a Yorkist dynasty which was already profoundly dysfunctional, the end result was the same: Richard III destroyed the very dynasty that he had spent his life so passionately defending.

King of Britain for sixty years and the last king of what would become the United States, George III inspired both hatred and loyalty and is now best known for two reasons: as a villainous tyrant for America's Founding Fathers, and for his madness, both of which have been portrayed on stage and screen. In this concise and penetrating biography, Jeremy Black turns away from the image-making and back to the archives, and instead locates George's life within his age: as a king who faced the loss of key colonies, rebellion in Ireland, insurrection in London, constitutional crisis in Britain and an existential threat from Revolutionary France as part of modern Britain's longest period of war. Black shows how George III rose to these challenges with fortitude and helped settle parliamentary monarchy as an effective governmental system, eventually becoming the most popular monarch for well over a century. He also shows us a talented and curious individual, committed to music, art, architecture and science, who took the duties of monarchy seriously, from reviewing death penalties to trying to control his often wayward children even as his own mental health failed, and became Britain's longest reigning king.

Henry VI, son of the all-conquering Henry V, was one of the least able and least successful of English kings. His long reign, which started when he was only nine months old, ended in catastrophe, with the loss of England's territories in France and a bankrupt England's long decline into civil war: the wars of the Roses. Yet, failure though Henry undoubtedly was, he remains an enigma. Was he always, as he became in the last disastrous years of his rule, a holy fool, simple-minded to the point of insanity and prey to the ambitions of others? Or was he more active and, as some have suggested, actively malign? In this groundbreaking new portrait, James Ross shows a king whose priorities diverged sharply from what England expected of its monarchs, and whose fitful engagement with government was directly, though not solely, responsible for the disasters that engulfed the kingdom during his reign.

Charismatic, insatiable and cruel, Henry VIII was, as John Guy shows, a king who became mesmerized by his own legend - and in the process destroyed and remade England. Said to be a 'pillager of the commonwealth', this most instantly recognizable of kings remains a figure of extreme contradictions: magnificent and vengeful; a devout traditionalist who oversaw a cataclysmic rupture with the church in Rome; a talented, towering figure who nevertheless could not bear to meet people's eyes when he talked to them. In this revealing new account, John Guy looks behind the mask into Henry's mind to explore how he understood the world and his place in it - from his isolated upbringing and the blazing glory of his accession, to his desperate quest for fame and an heir and the terrifying paranoia of his last, agonising, 54-inch-waisted years.

'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.

William III (1689-1702) & Mary II (1689-94) (Britain's only ever 'joint monarchs') changed the course of the entire country's history, coming to power through a coup (which involved Mary betraying her own father), reestablishing parliament on a new footing and, through commiting Britain to fighting France, initiating an immensely long period of warfare and colonial expansion. Jonathan Keates' wonderful book makes both monarchs vivid, the cold, shrewd 'Dutch' William and the shortlived Mary, whose life and death inspired Purcell to write some of his greatest music.

Charles II has always been one of the most instantly recognisable British kings - both in his physical appearance, disseminated through endless portraits, prints and pub signs, and in his complicated mix of lasciviousness, cynicism and luxury. His father's execution and his own many years of exile made him a guarded, curious, unusually self-conscious ruler. He lived through some of the most striking events in the national history - from the Civil Wars to the Great Plague, from the Fire of London to the wars with the Dutch. Clare Jackson's marvellous book takes full advantage of its irrepressible subject.