King
Adolf Frederick of Sweden (1751-1771) would have given even less trouble than his predecessor but for the ambitious promptings of his masterful consort
Louisa Ulrika of Prussia,
Frederick the Great's sister, and the tyranny of the estates, who seemed bent upon driving the meekest of princes into rebellion. An attempted monarchical revolution, planned by the queen and a few devoted young nobles in 1756, was easily and remorselessly crushed; and, though the unhappy king did not, as he anticipated, share the fate of
Charles Stuart, he was humiliated as never monarch was humiliated before.
The same years which beheld this great domestic triumph of the Hats saw also the utter collapse of their foreign "system." At the instigation of
France they plunged recklessly into the
Seven Years' War; and the result was ruinous. The French subsidies, which might have sufficed for a six weeks demonstration (it was generally assumed that the king of
Prussia would give little trouble to a European coalition), proved quite inadequate; and, after five unsuccessful campaigns, the unhappy Hats were glad to make peace and ignominiously withdraw from a little war which had cost the country 40,000 men. When the
Riksdag met in 1760, the indignation against the Hat leaders was so violent that an impeachment seemed inevitable; but once more the superiority of their parliamentary tactics prevailed, and when, after a session of twenty months, the Riksdag was brought to a close by the mutual consent of both the exhausted factions, the Hat government was bolstered up for another four years. But the day of reckoning could not be postponed for ever; and when the estates met in 1765 it brought the Caps into power at last. Their leader,
Ture Rudbeck, was elected marshal of the Diet over
Frederick Axel von Fersen, the Hat candidate, by a large majority; and, out of the hundred seats in the secret committee, the Hats succeeded in getting only ten.
The Caps struck at once at the weak point of their opponents by ordering a budget report to be made; and it was speedily found that the whole financial system of the Hats had been based upon reckless improvidence and the wilful misrepresentation, and that the only fruit of their long rule was an enormous addition to the national debt and a depreciation of the note circulation to one third of its face value. This revelation led to an all-round retrenchment, carried into effect with a drastic thoroughness which has earned for this parliament the name of the "Reduction Riksdag". The Caps succeeded in reducing the national debt, half of which was transferred from the pockets of the rich to the empty exchequer, and establishing some sort of equilibrium between revenue and expenditure. They also introduced a few useful reforms, the most remarkable of which was the
liberty of the press in 1766. But their most important political act was to throw their lot definitely in with
Russia, so as to counterpoise the influence of
France.