But the fate of Clarendon and the growing ill humour of the Parliament determined the advisers of Charles to adopt on a sudden a policy which amazed and delighted the nation.
The English resident at Brussels, Sir William Temple, one of the most expert diplomatists and most pleasing writers of that age, had already represented to this court that it was both desirable and practicable to enter into engagements with the States General for the purpose of checking the progress of France. For a time his suggestions had been slighted; but it was now thought expedient to act on them. He was commissioned to negotiate with the States General. He proceeded to the Hague, and soon came to an understanding with John De Witt, then the chief minister of Holland. Sweden, small as her resources were, had, forty years before, been raised by the genius of Gustavus Adolphus to a high rank among European powers, and had not yet descended to her natural position. She was induced to join on this occasion with England and the States. Thus was formed that coalition known as the Triple Alliance. Lewis showed signs of vexation and resentment, but did not think it politic to draw on himself the hostility of such a confederacy in addition to that of Spain. He consented, therefore, to relinquish a large part of the territory which his armies had occupied. Peace was restored to Europe; and the English government, lately an object of general contempt, was, during a few months, regarded by foreign powers with respect scarcely less than that which the Protector had inspired.
At home the Triple Alliance was popular in the highest degree. It gratified alike national animosity and national pride. It put a limit to the encroachments of a powerful and ambitious neighbour. It bound the leading Protestant states together in close union. Cavaliers and Roundheads rejoiced in common: but the joy of the Roundhead was even greater than that of the Cavalier. For England had now allied herself strictly with a country republican in government and Presbyterian in religion, against a country ruled by an arbitrary prince and attached to the Roman Catholic Church. The House of Commons loudly applauded the treaty; and some uncourtly grumblers described it as the only good thing that had been done since the King came in.