332 A BRIEF SURVEY OF HUMAN HISTORY consent, any revenue out of Church property to any king or ruler. He also threatened rulers who should presume to exact such tribute with excommunication. The King of France, Philip the Fair, took up the challenge by bearding the lion in his own den. Finally, in 1305, he got a Pope of his own choke ("Clement V") appointed. These servile Popes continued to be proclaimed until 1377 at Avignon on the border of France.1 Ultimately, this led to rival Popes being ordained in France and Italy, both claiming to be sole head of the Church. In 1409 a great council was called to Pisa to settle the dispute. Both the rivals at Avignon and Rome were declared deposed and a new Pope was pro- claimed. But this only increased the number of Popes to three in place of two! The Great Schism was not " healed " until the memorable Council of Constance, which met in 1414 and continued its sessions till 1427. Its two great achievements were the burning of Huss (a Bohemian follow- er of Wycliffe) as a heretic and the appointment of Pope Martin V who displaced all the others. Another great critic of the decadent Church was the Dutch scholar Erasmus (c. 1469—1536). He was a very learned man and keenly desired to improve the religious conditions in the countries of Western Europe. Though born in Holland he spent much of his life in France, England, Italy, and Germany. As a boy he had been forced into a monastery, much against -his will, but he lived to be an earnest monk, greatly interested in Greek and Latin authors, as well as in religious reform. " The essence of our religion," he said, " is peace and harmony. These can only exist where 1. This is known as the " Babylonian Captivity " as it recalled the memory of the Jewish patriarchs taken to Babylon by Nebuchadrezzar (see p. 88 ante).