They could look for no help from Elizabeth. Whatever enthusiasm the heroic struggle of the Prince of Orange for their liberties excited among her subjects, it failed to move Elizabeth even for an instant from the path of cold self-interest. To her the revolt of the Netherlands was simply "a bridle of Spain, which kept war out of our own gate." At the darkest moment of the contest, when Alva had won back all but Holland and Zealand and even William of Orange despaired, the Queen bent her energies to prevent him from finding succour in France. That the Low Countries could in the end withstand Philip, neither she nor any English statesmen believed. They held that the struggle must close either in their subjection to him, or in their selling themselves for aid to France; and the accession of power which either result must give to one of her two Catholic foes the Queen was eager to avert. Her plan for averting it was by forcing the Provinces to accept the terms which were now offered by Alva's successor, Requesens, a restoration of their constitutional privileges on condition of their submission to the Church. Peace on such a footing would not only restore English commerce, which suffered from the war; it would leave the Netherlands still formidable as a weapon against Philip. The freedom of the Provinces would be saved; and the religious question involved in a fresh submission to the yoke of Catholicism was one which Elizabeth was incapable of appreciating. To her the steady refusal of William the Silent to sacrifice his faith was as unintelligible as the steady bigotry of Philip in demanding such a sacrifice. It was of more immediate consequence that Philip's anxiety to avoid provoking an intervention on the part of England left Elizabeth tranquil at home. The policy of Requesens after Alva's departure at the close of 1573 was a policy of pacification; and with the steady resistance of the Netherlands still foiling his efforts Philip saw that his one hope of success rested on the avoidance of intervention from without. The civil war which followed the massacre of St. Bartholomew removed all danger of such an intervention on the side of France. A weariness of religious strife enabled Catharine again to return to her policy of toleration in the summer of 1573; but though the death of Charles the Ninth and accession of his brother Henry the Third in the following year left the queen-mother's power unbroken, the balance she preserved was too delicate to leave room for any schemes without the realm. [Sidenote: England becomes Protestant.]