All through the religious conflict policy kept the upper hand. When the last of the Reformers died, religion, instead of emancipating the nations, had become an excuse for the criminal art of despots. Calvin preached and Bellarmine lectured, but Machiavelli reigned. Before the close of the century three events occurred which mark the beginning of a momentous change. The massacre of St. Bartholomew convinced the bulk of Calvinists of the lawfulness of rebellion against tyrants, and they became advocates of that doctrine in which the Bishop of Winchester had led the way,[4] and which Knox and Buchanan had received, through their master at Paris, straight from the mediaeval schools. Adopted out of aversion to the King of France, it was soon put in practice against the King of Spain. The revolted Netherlands, by a solemn Act, deposed Philip II., and made themselves independent under the Prince of Orange, who had been, and continued to be, styled his Lieutenant. Their example was important, not only because subjects of one religion deposed a monarch of another, for that had been seen in Scotland, but because, moreover, it put a republic in the place of a monarchy, and forced the public law of Europe to recognise the accomplished revolution. At the same time, the French Catholics, rising against Henry III., who was the most contemptible of tyrants, and against his heir, Henry of Navarre, who, as a Protestant, repelled the majority of the nation, fought for the same principles with sword and pen.