The Council of Constance is one of the most notable assemblies in the history of the world. In the number and fame of its members, in the importance of its objects, and, above all, in the dramatic interest of its records, it has few rivals. It is like the meeting of two worlds, the old and the new, the mediaeval and the modern. We find there represented views which have hardly yet been fully accepted, which have occupied the best minds of succeeding centuries; at the same time, the council itself and its ceremonial carry us back to the times of the Roman Empire, when church and state were scarcely yet dual, and when Christianity was coextensive with one united empire. At Constance all the ideas, religious and political, of the Middle Ages seem to be put upon their trial. If that trial had ended in condemnation, there could be no fitter point to mark the division between mediaeval and modern history. But the verdict was acquittal, or at least a partial aquittal; and the old system was allowed, under modified conditions, a lease of life for another century. It must not be forgotten that there were great secular as well as ecclestiasical interests involved in the council. Princes and nobles were present as well as cardinals and prelates. The council may be regarded not only as a great assembly of the Church, but also as a great diet of the mediaeval empire. The man who had done more than anyone to procure the summons of the council, and whose interests were most closely bound up in its success, was Sigismund, King of the Romans and potential Emperor. He was eager to terminate the schism, and to bring about such a reform in the Church as would prevent the recurrence of similar scandals. But his motive in this was not merely disinterested devotion to the interests of the Church. He wished to revive the prestige of the Holy Roman Empire, and to gratify his own personal vanity by posing as the secular head of Christendom and the arbiter of its disputes. More especially he wished to restore the authority of the monarchy in Germany, and to put an end to that anarchic independence of the princes of which the recent schism was both the illustration and the result.