Among the rivalries that convulsed the Mussulman states, Malek-Adel met with no obstruction to his projects; the troubles and disorders which his usurpation gave birth to, even the wars undertaken against him, all contributed to the consolidation and extension of his unjustly-obtained power. It became evident that he must soon unite under his sway the greater part of the provinces conquered by Saladin. Thus was verified, for the second time within a few years, the observation of an Arabian historian, who expressed himself in the following words when speaking of the succession of Noureddin: “_The greater part of the founders of empires have not been able to leave them to their posterity._” This instability of power is not a thing to be wondered at in countries where success renders everything legitimate, where the caprices of fortune are frequently laws, and where the most formidable enemies of an empire founded by arms, are the very men whose bravery has assisted in raising it. The historian we have quoted, deplores the revolutions of military despotism, without duly searching for the natural causes of them; and can explain so many changes only by referring to the justice of God, always ready to punish, at least in their children, all who have employed violence or shed the blood of man to attain empire. Such were the revolutions which, during many years, agitated the Mussulman states of Syria and Egypt. The fourth crusade, which we are about to describe, and in which the Christians might have greatly profited by the troubles of the East, only served to reunite the scattered members of the empire of Saladin. Malek-Adel owed the progress of his power not only to the divisions of the Mussulmans, but to the spirit of discord that reigned among the Christians. After the departure of the king of England, as was always the case at the termination of every crusade, the Christian colonies, surrounded by perils, advanced more rapidly to their fall. Henry of Champagne, charged with the government of Palestine, disdained the title of king, as he was impatient to return to Europe, and looked upon his kingdom as a place of exile. The three military orders, detained in Asia by their vows, constituted the principal strength of a state which but lately had had all the warriors of Europe for its defenders. Guy of Lusignan retired to Cyprus, took no more interest in the fate of Jerusalem, and had full occupation in keeping himself on his new throne, shaken by the continual revolts of the Greeks and threatened by the emperors of Constantinople.