The knowledge of this general disposition in the minds of men will naturally remove a great deal of our wonder at seeing an attempt founded on such slender appearances of right, and supported by a power so little proportioned to the undertaking as that of William, so warmly embraced and so generally followed, not only by his own subjects, but by all the neighboring potentates. The Counts of Anjou, Bretagne, Ponthieu, Boulogne, and Poictou, sovereign princes,--adventurers from every quarter of France, the Netherlands, and the remotest parts of Germany, laying aside their jealousies and enmities to one another, as well as to William, ran with an inconceivable ardor into this enterprise, captivated with the splendor of the object, which obliterated all thoughts of the uncertainty of the event. William kept up this fervor by promises of large territories to all his allies and associates in the country to be reduced by their united efforts. But after all it became equally necessary to reconcile to his enterprise the three great powers of whom we have just spoken, whose disposition must have had the most influence on his affairs.
His feudal lord, the King of France, was bound by his most obvious interests to oppose the further aggrandizement of one already too potent for a vassal. But the King of France was then a minor; and Baldwin, Earl of Flanders, whose daughter William had married, was regent of the kingdom. This circumstance rendered the remonstrance of the French Council against his design of no effect: indeed, the opposition of the Council itself was faint; the idea of having a king under vassalage to their crown might have dazzled the more superficial courtiers; whilst those who thought more deeply were unwilling to discourage an enterprise which they believed would probably end in the ruin of the undertaker. The Emperor was in his minority, as well as the King of France; but by what arts the Duke prevailed upon the Imperial Council to declare in his favor, whether or no by an idea of creating a balance to the power of France, if we can imagine that any such idea then subsisted, is altogether uncertain; but it is certain that he obtained leave for the vassals of the Empire to engage in his service, and that he made use of this permission. The Popes consent was obtained with still less difficulty. William had shown himself in many instances a friend to the Church and a favorer of the clergy. On this occasion he promised to improve those happy beginnings in proportion to the means he should acquire by the favor of the Holy See. It is said that he even proposed to hold his new kingdom as a fief from Rome. The Pope, therefore, entered heartily into his interests; he excommunicated all those that should oppose his enterprise, and sent him, as a means of insuring success, a consecrated banner.
