At the death of Charles Martel, his son Pepin, a man of great energy and ambition, drove the imbecile king, Childeric III., into a cloister, and took his seat unresisted upon the throne. The dynasty thus established is called the Carlovingian, from Charlemagne, the most illustrious of this line of kings. The nation cordially approved of the act. As Pepin could not claim the throne by right of hereditary descent, he founded his title to reign upon the regal power which his father had in _reality_ exercised, and upon the well-known assent of the nation. To confirm his authority still more, he appealed to the Pope. The Church was now in the plenitude of its power; and the Pope, grateful for the service which Charles Martel had rendered the Church by driving back the infidels, with alacrity consented to establish Pepin upon the throne by the august rites of religion. Pepin, as his leading warriors had now become horsemen, changed the time of the general assemblies from the month of March to May, as the latter month was more convenient for forage, and the Assembly hence received the name of Fields of May, _Champs de Mai_. At these meetings the king presided, and the body was composed of the higher clergy and the nobility. Occasionally, a small delegation of the most distinguished of the people, who were called the Third Estate, _Tiers Etat_, had been admitted. Pepin called together only the clergy and the nobility, declining to admit the Third Estate to the Assembly. Subsequently some kings admitted the Third Estate, and others excluded them, according to their caprice. Questions relating to war, peace, and the enactment of general laws were submitted to this body, and decided by the majority. The chiefs only could speak. The assembled warriors clamorously and with clashing of arms expressed assent or dissent. The world-renowned Charlemagne, succeeding his father Pepin, ascended the throne in the year 768. France at that time presented every where an aspect of decay and wild disorder. This monarch, illustrious both as a warrior and a statesman, fused the heterogeneous and warring tribes into a compact nation. Still, the mass, though consolidated, was conglomerate, its component parts distinctly defined. All France bowed submissive to his sway. Like a whirlwind he traversed Spain with his armies. Italy speedily acknowledged his supremacy. The vast empire of Charlemagne soon vied with that of ancient Rome, embracing nearly the whole of Europe.