The character of Frederic was still very imperfectly understood either by his subjects or by his neighbours, when events occurred which exhibited it in a strong light. A few months after his accession died Charles the Sixth, Emperor of Germany, the last descendant, in the male line, of the House of Austria. Charles left no son, and had, long before his death, relinquished all hopes of male issue. During the latter part of his life, his principal object had been to secure to his descendants in the female line the many crowns of the House of Hapsburg. With this view, he had promulgated a new law of succession, widely celebrated throughout Europe under the name of the Pragmatic Sanction. By virtue of this law, his daughter, the Archduchess Maria Theresa, wife of Francis of Lorraine, succeeded to the dominions of her ancestors. No sovereign has ever taken possession of a throne by a clearer title. All the politics of the Austrian cabinet had, during twenty years, been directed to one single end, the settlement of the succession. From every person whose rights could be considered as injuriously affected, renunciations in the most solemn form had been obtained. The new law had been ratified by the Estates of all the kingdoms and principalities which made up the great Austrian monarchy. England, France, Spain, Russia, Poland, Prussia, Sweden, Denmark, the Germanic body, had bound themselves by treaty to maintain the Pragmatic Sanction. That instrument was placed under the protection of the public faith of the whole civilised world. Even if no positive stipulations on this subject had existed, the arrangement was one which no good man would have been willing to disturb. It was a peaceable arrangement. It was an arrangement acceptable to the great population whose happiness was chiefly concerned. It was an arrangement which made no change in the distribution of power among the states of Christendom. It was an arrangement which could be set aside only by means of a general war; and, if it were set aside, the effect would be, that the equilibrium of Europe would be deranged, that the loyal and patriotic feelings of millions would be cruelly outraged, and that great provinces which had been united for centuries would be torn from each other by main force.