The medieval period has a reputation for being as dark as the age that preceded it, so I was almost reluctant to read this book, but I'm glad I made the effort to pick it up. This is Shakespeare's king, but not as countless actors have played him. Ian Mortimer uses biography as a powerful tool to investigate the relationship between Richard (Henry's predecessor) and Henry - from Henry's point of view. Henry's taking the throne is often taken as the root of the Wars of the Roses, and the author shows how Richard changed his mind about his heir several times. Having become king, Henry had to sweep away almost a century of English royal practices to ensure he had a hereditary right to the throne, and although Richard did indeed make the Yorkists the heirs to the throne, they themselves initially gave in to Henry. This casts a long shadow over the rest of 15th-century history. Mortimer's great strength is that he does not rehash accepted views but has embarked on a thorough re-evaluation of the information contained within the contemporary evidence, and a logical examination of its contradictions and implication. This is not revisionism for the sake of it, but an essential analysis of the available evidence. This might sound like medieval political history at its driest: not in this book. The full horror of the tyranny of Richard II's final years in power contrasts with the chivalric fervour of Henry's early life. As the sole grandson of Edward III and the first duke of Lancaster, he was one of the foremost warriors of the 14th century, and possibly the greatest tournament fighter the English royal family ever produced. The description of the battle of Shrewbury gives a real insider's view of what it was like to be involved in one of these battles. Bloody conflict, subtle political manoeuvring and up-to-date historical analysis - this book has it all.