By the abdication to which he had forced his son, the legitimate order of succession resumed its course in the house of Palæologus. Unhappily, the Greek Empire of the fourteenth century was not strong enough to stand the shocks of civil war. Irreparable losses in men, money, and territory were inflicted on her. Genoa and Venice were driving their talons deeper and deeper into her enfeebled body. The Greek Morea, and even Thessalonica, had grown used to doing as they would. Finally, the different parties had shown the Ottomans methods which they were not likely to forget.[88]
THE CRUSADE OF THE FOURTEENTH CENTURY
[1343-1391 A.D.]
Latin Europe alone could have saved the Greek Empire, but in the fourteenth century she was worn out by wars with nation after nation, by the antagonism between the Roman pope and the Avignon pope, and even between council and council. When a sovereign pontiff appeared authorised to speak in the name of Europe, he imposed, as the first condition to an uncertain union, the recognition of his supremacy by the Eastern church.
It would take too long to recall all the crusading projects which were raised in the papal court of Avignon, and in that of the French kings from Philippe le Bel to Philippe VI of Valois. Under Benedict XII, a fleet was placed under the orders of the legate Henry, patriarch in partibus of Constantinople. Smyrna was taken from the Ionian emir, Omur Beg (1343). Fifty-two pirate ships were destroyed by the Christian fleet in sight of Athos (1344).
In 1366 Amadeus VI of Savoy, uncle of Joannes V, appeared in Byzantine waters. He took Gallipoli and Sozopolis from the Turks, repulsed an invasion of the Bulgarians, took from them Mesembria and Varna, and dictated a peace. In 1390, Louis II of Clermont, duke of Bourbon, landed at Tunis, Africa (Mehadia), but failed in the assault.
Thus in the West the crusading spirit was not yet extinct. Many of these crusades inspired little love for the Grecian Empire. Among the numerous projects presented to the popes and western sovereigns, there was one urging that the conquest of Byzantium was an indispensable preliminary to delivering the Holy Land.
Joannes V Palæologus hoped, although this formidable Western sword was in so many hands, to turn it against the enemies of the empire. So pressing was the danger, that the head of the orthodox church had to consent to go and kneel at Rome before Pope Urban V (1369). Unfortunately the resources of the pope had been exhausted by the last enterprise. At Venice Joannes V had to borrow, at high interest, enough money to continue his journey. After a fruitless tour in the south of France, as Joannes V was passing through Venice, quite unable to repay the loan, he was imprisoned at the request of his creditors. Thus the sacred person of the heir of Constantine the Great was kept in pledge by Venetian usurers.