The eldest of the sons of Manuel, John Palæologus the Second, was acknowledged, after his father's death, as the sole emperor of the Greeks. He immediately proceeded to repudiate his wife, and to contract a new marriage with the princess of Trebizond: beauty was in his eyes the first qualification of an empress; and the clergy had yielded to his firm assurance, that unless he might be indulged in a divorce, he would retire to a cloister, and leave the throne to his brother Constantine. The first, and in truth the only, victory of Palæologus, was over a Jew,¹⁴ whom, after a long and learned dispute, he converted to the Christian faith; and this momentous conquest is carefully recorded in the history of the times. But he soon resumed the design of uniting the East and West; and, regardless of his father's advice, listened, as it should seem with sincerity, to the proposal of meeting the pope in a general council beyond the Adriatic. This dangerous project was encouraged by Martin the Fifth, and coldly entertained by his successor Eugenius, till, after a tedious negotiation, the emperor received a summons from the Latin assembly of a new character, the independent prelates of Basil, who styled themselves the representatives and judges of the Catholic church.

The Roman pontiff had fought and conquered in the cause of ecclesiastical freedom; but the victorious clergy were soon exposed to the tyranny of their deliverer; and his sacred character was invulnerable to those arms which they found so keen and effectual against the civil magistrate. Their great charter, the right of election, was annihilated by appeals, evaded by trusts or commendams, disappointed by reversionary grants, and superseded by previous and arbitrary reservations.¹⁵ A public auction was instituted in the court of Rome: the cardinals and favorites were enriched with the spoils of nations; and every country might complain that the most important and valuable benefices were accumulated on the heads of aliens and absentees. During their residence at Avignon, the ambition of the popes subsided in the meaner passions of avarice¹⁶ and luxury: they rigorously imposed on the clergy the tributes of first-fruits and tenths; but they freely tolerated the impunity of vice, disorder, and corruption. These manifold scandals were aggravated by the great schism of the West, which continued above fifty years. In the furious conflicts of Rome and Avignon, the vices of the rivals were mutually exposed; and their precarious situation degraded their authority, relaxed their discipline, and multiplied their wants and exactions. To heal the wounds, and restore the monarchy, of the church, the synods of Pisa and Constance¹⁷ were successively convened; but these great assemblies, conscious of their strength, resolved to vindicate the privileges of the Christian aristocracy. From a personal sentence against two pontiffs, whom they rejected, and a third, their acknowledged sovereign, whom they deposed, the fathers of Constance proceeded to examine the nature and limits of the Roman supremacy; nor did they separate till they had established the authority, above the pope, of a general council. It was enacted, that, for the government and reformation of the church, such assemblies should be held at regular intervals; and that each synod, before its dissolution, should appoint the time and place of the subsequent meeting. By the influence of the court of Rome, the next convocation at Sienna was easily eluded; but the bold and vigorous proceedings of the council of Basil¹⁸ had almost been fatal to the reigning pontiff, Eugenius the Fourth. A just suspicion of his design prompted the fathers to hasten the promulgation of their first decree, that the representatives of the church-militant on earth were invested with a divine and spiritual jurisdiction over all Christians, without excepting the pope; and that a general council could not be dissolved, prorogued, or transferred, unless by their free deliberation and consent. On the notice that Eugenius had fulminated a bull for that purpose, they ventured to summon, to admonish, to threaten, to censure the contumacious successor of St. Peter. After many delays, to allow time for repentance, they finally declared, that, unless he submitted within the term of sixty days, he was suspended from the exercise of all temporal and ecclesiastical authority. And to mark their jurisdiction over the prince as well as the priest, they assumed the government of Avignon, annulled the alienation of the sacred patrimony, and protected Rome from the imposition of new taxes. Their boldness was justified, not only by the general opinion of the clergy, but by the support and power of the first monarchs of Christendom: the emperor Sigismond declared himself the servant and protector of the synod; Germany and France adhered to their cause; the duke of Milan was the enemy of Eugenius; and he was driven from the Vatican by an insurrection of the Roman people. Rejected at the same time by temporal and spiritual subjects, submission was his only choice: by a most humiliating bull, the pope repealed his own acts, and ratified those of the council; incorporated his legates and cardinals with that venerable body; and seemed to resign himself to the decrees of the supreme legislature. Their