Dame History is so austere a lady that if one, has been so ill-advised as to take a liberty with her, one should hasten to make amends by repentance and confession. Events have been transposed to the extent of some few months in this narrative in order to preserve the continuity and evenness of the story. I hope so small a divergence may seem a venial error after so many centuries. For the rest, it is as accurate as a good deal of research and hard work could make it.