Originally published in 1987, this book compares and contrasts the characters and careers of two great protagonists in the English Civil War and its aftermath. The book shows how Charles I and Oliver Cromwell were confronted with the same problems and therefore, to a surprisingly large extent, were obliged to deal with them in much the same kind of way. The book re-examines their military methods, their approaches to religion, their diplomatic manoeuvres, their domestic policies and the manner in which they handled their parliaments. Above all, it considers how their vastly different personalities determined their actions. Finally it debates how far a revolution, of which Cromwell was the instrument and Charles the victim, can be said to have taken place in the mid-seventeenth century or whether what occurred was simply a political rebellion sparked off by religious passion.