The Pope convoked an assembly at Spoleto, at which it was determined to ignore Frederick’s truce with the Sultan of Cairo, and renew the war. Special agents of the holy see visited the various courts; monks and orators went everywhere, preaching the necessity of dyeing the cross anew in the blood of unbelievers. The followers of St. Francis and St. Dominic were diverted from their legitimate and honorable work of charity to act as the collectors of a war fund. Troubadours, headed by Thibaut V., King of Navarre, sang: “Heaven is closed to those who will not cross the sea,” and urged in rhythmic piety the exchange of earthly amours for the service of the Virgin: “My Lady lost, Lady, be thou my aid.” The war upon the helpless Albigenses having come to an end from the extermination of its victims, many soldiers were impatient of new service to appease their sharply whetted appetite for blood. Thus a multitude was enrolled for a new crusade. But a diverting cry came from a different direction. The Latin empire at Constantinople was falling. First Lascaris and then Vataces had for years kept the Greeks well in hand, and they now assailed the walls of the capital. John of Brienne was called to the tottering throne. As everywhere during his long career, so now at the age of eighty years this man showed splendid qualities on the field, but died without effectually driving away the foe. His son-in-law, Baldwin, succeeded him to a barren sceptre, and visited Europe in piteous entreaty for help. This call would have been sufficient in itself to divert much of the energy of the crusaders; but the Pope, now far gone in senility, further embarrassed affairs by commanding the warriors to return to their homes. This order went far towards depreciating the Pope in popular reverence. Those assembled at Lyons replied to the papal message: “Whence arises this fickleness in the Roman court? According to the promises of the preachers we have prepared ourselves in God’s behalf; we have sold or pledged our lands, taken leave of friends, sent our money to the Holy Land in advance. Why do our pastors change their tone and rise against us?” With difficulty were they restrained from doing violence to the papal agents. The Pope, however, remained inexorable, and threatened all who proceeded with the crusade that “they should not enjoy the indulgence for their sins which had been granted them.” Some urged the sacredness of their crusaders’ vow. This scruple the Pope readily turned to the account of his treasury by absolving such from their pledge upon payment of a sum of money equal to that required to provision themselves for the voyage, whence “great scandal and schism arose among the people.”