Stirling's predecessors had examined the records of the emperor's residence at Yuste. Still, in his account the author had omitted the most important feature of Charles's monastic life,--the influence which he exercised on the administration of the kingdom. This was to be gathered from the manuscripts of Simancas. Mr. Stirling, who through that inexhaustible repository, the Handbook of Spain, had become acquainted with the existence of the Gonzalez MS., was, at the time of writing his essays, ignorant of its fate. On learning, afterwards, where it was to be found, he visited Paris, and, having obtained access to the volume, so far profited by its contents as to make them the basis of a separate work, which he entitled "The Cloister Life of Charles the Fifth." It soon attracted the attention of scholars, both at home and abroad, went through several editions, and was received, in short, with an avidity which showed both the importance attached to the developments the author had made, and the highly attractive form in which he had presented them to the reader. The Parisian scholars were now stimulated to turn to account the treasure which had remained so long neglected on their shelves. In 1854, less than two years after the appearance of Mr. Stirling's book, M. Amédée Pichot published his "_Chronique de Charles-Quint_," a work which, far from being confined to the latter days of the emperor, covers the whole range of his biography, presenting a large amount of information in regard to his personal habits, as well as to the interior organization of his government, and the policy which directed it. The whole is enriched, moreover, by a multitude of historical incidents, which may be regarded rather as subsidiary than essential to the conduct of the narrative, which is enlivened by much ingenious criticism on the state of manners, arts, and moral culture of the period. It was not long after the appearance of this work that M. Gachard, whom I have elsewhere noticed as having been commissioned by the Belgian government to make extensive researches in the Archives of Simancas, gave to the public some of the fruits of his labors, in the first volume of his "_Retraite et Mort de Charles-Quint_." It is devoted to the letters of the emperor and his household, which form the staple of the Gonzalez MS.; thus placing at the disposition of the future biographer of Charles the original materials with which to reconstruct the history of his latter days.