Some things indeed were to be done which none of his subjects would have ventured to do. Pope Alexander was really, though not in name, one of the allies; it was of the highest importance to have him for a friend; and yet such was the temper of the English nation that an English minister might well shrink from having any dealings, direct or indirect, with the Vatican. The Secretaries of State were glad to leave a matter so delicate and so full of risk to their master, and to be able to protest with truth that not a line to which the most intolerant Protestant could object had ever gone out of their offices.
It must not be supposed however that William ever forgot that his especial, his hereditary, mission was to protect the Reformed Faith. His influence with Roman Catholic princes was constantly and strenuously exerted for the benefit of their Protestant subjects. In the spring of 1691, the Waldensian shepherds, long and cruelly persecuted, and weary of their lives, were surprised by glad tidings. Those who had been in prison for heresy returned to their homes. Children, who had been taken from their parents to be educated by priests, were sent back. Congregations, which had hitherto met only by stealth and with extreme peril, now worshipped God without molestation in the face of day. Those simple mountaineers probably never knew that their fate had been a subject of discussion at the Hague, and that they owed the happiness of their firesides, and the security of their humble temples to the ascendency which William exercised over the Duke of Savoy. 8
No coalition of which history has preserved the memory has had an abler chief than William. But even William often contended in vain against those vices which are inherent in the nature of all coalitions. No undertaking which requires the hearty and long continued cooperation of many independent states is likely to prosper. Jealousies inevitably spring up. Disputes engender disputes. Every confederate is tempted to throw on others some part of the burden which he ought himself to bear. Scarcely one honestly furnishes the promised contingent. Scarcely one exactly observes the appointed day. But perhaps no coalition that ever existed was in such constant danger of dissolution as the coalition which William had with infinite difficulty formed. The long list of potentates, who met in person or by their representatives at the Hague, looked well in the Gazettes. The crowd of princely equipages, attended by manycoloured guards and lacqueys, looked well among the lime trees of the Voorhout. But the very circumstances which made the Congress more splendid than other congresses made the league weaker than other leagues. The more numerous the allies, the more numerous were the dangers which threatened the alliance. It was impossible that twenty governments, divided by quarrels about precedence, quarrels about territory, quarrels about trade, quarrels about religion, could long act together in perfect harmony. That they acted together during several years in imperfect harmony is to be ascribed to the wisdom, patience and firmness of William.
The situation of his great enemy was very different. The resources of the French monarchy, though certainly not equal to those of England, Holland, the House of Austria, and the Empire of Germany united, were yet very formidable; they were all collected in a central position; they were all under the absolute direction of a single mind. Lewis could do with two words what William could hardly bring about by two months of negotiation at Berlin, Munich, Brussels, Turin and Vienna. Thus France was found equal in effective strength to all the states which were combined against her. For in the political, as in the natural world, there may be an equality of momentum between unequal bodies, when the body which is inferior in weight is superior in velocity.
This was soon signally proved. In March the princes and ambassadors who had been assembled at the Hague separated and scarcely had they separated when all their plans were disconcerted by a bold and skilful move of the enemy.
Lewis was sensible that the meeting of the Congress was likely to produce a great effect on the public mind of Europe. That effect he determined to counteract by striking a sudden and terrible blow. While his enemies were settling how many troops each of them should furnish, he ordered numerous divisions of his army to march from widely distant points towards Mons, one of the most important, if not the most important, of the fortresses which protected the Spanish Netherlands. His purpose was discovered only when it was all but accomplished. William, who had retired for a few days to Loo, learned, with surprise and extreme vexation, that cavalry, infantry, artillery, bridges of boats, were fast approaching the fated city by many converging routes. A hundred thousand men had been brought together. All the implements of war had been largely provided by Louvois, the first of living administrators. The command was entrusted to Luxemburg, the first of living generals. The scientific operations were directed by Vauban, the first of living engineers. That nothing might be wanting which could kindle emulation through all the ranks of a gallant and loyal army, the magnificent King himself had set out from Versailles for the camp. Yet William had still some faint hope that it might be possible to raise the siege. He flew to the Hague, put all the forces of the States General in motion, and sent pressing messages to the German Princes. Within three weeks after he had received the first hint of the danger, he was in the neighbourhood of the besieged city, at the head of near fifty thousand troops of different nations. To attack a superior force commanded by such a captain as Luxemburg was a bold, almost a desperate, enterprise. Yet William was so sensible that the loss of Mons would be an almost irreparable disaster and disgrace that he made up his mind to run the hazard. He was convinced that the event of the siege would determine the policy of the Courts of Stockholm and Copenhagen. Those Courts had lately seemed inclined to join the coalition. If Mons fell, they would certainly remain neutral; they might possibly become hostile. "The risk," he wrote to Heinsius, "is great; yet I am not without hope. I will do what can be done. The issue is in the hands of God." On the very day on which this letter was written Mons fell. The siege had been vigorously pressed. Lewis himself, though suffering from the gout, had set the example of strenuous exertion. His household troops, the finest body of soldiers in Europe, had, under his eye, surpassed themselves. The young nobles of his court had tried to attract his notice by exposing themselves to the hottest fire with the same gay alacrity with which they were wont to exhibit their graceful figures at his balls. His wounded soldiers were charmed by the benignant courtesy with which he walked among their pallets, assisted while wounds were dressed by the hospital surgeons, and breakfasted on a porringer of the hospital broth. While all was obedience and enthusiasm among the besiegers, all was disunion and dismay among the besieged. The duty of the French lines was so well performed that no messenger sent by William was able to cross them. The garrison did not know that relief was close at hand. The burghers were appalled by the prospect of those horrible calamities which befall cities taken by storm.