When Lewis appeared within the walls of Rochelle he cancelled the privileges of the town, ordered its walls to be pulled down and its churches to be given over to the Catholic worship. But under Richelieu's guidance he announced his resolution to assure the Protestants a continuance of the religious liberties granted by his father. No towns in France should be garrisoned by troops other than the king's. No authorities in France should give orders independently of the king. But wherever a religion which was not that of the king had succeeded in establishing its power over men's minds no attempt should be made to effect a change by force. Armed with such a principle as this, France would soon be far stronger than her neighbours. If Catholic and Huguenot could come to regard one another as Frenchmen and nothing else, what chance had foreign powers of resisting her? She had already beaten back the attack of a divided England. Would she not soon acquire a preponderance over a divided Germany? It is time for us now to ask what steps were being taken in Germany to meet or to increase the danger. CHAPTER VII. THE EDICT OF RESTITUTION. SECTION I.--_Oppression of the Protestants._ [Sidenote: 1628. § 1. Siege of Glückstadt.] It was not at Stralsund only that Wallenstein learned that he could be successfully resisted. Stade had surrendered with its English garrison to Tilly in April, but Glückstadt still held out. In vain Wallenstein came in person to Tilly's aid. The Danish cruisers kept the sea open. Wallenstein was obliged to retire. In January, 1629, the works of the besiegers were destroyed by a sally of the garrison. [Sidenote: 1629. § 2. The Peace of Lübeck.] Wallenstein, the great calculator, saw that peace with Denmark was necessary. The Swedes and the Danes were beginning to act together, and resistance to one nation, if there must be resistance, would be easier than resistance to two. Much to his satisfaction he found Christian not unwilling to listen to the voice of his charming. Just as the eagle eye of Gustavus descried the first feeble beams of light on the horizon, the King of Denmark, weary of misfortune and vexed at the prospect of having to crave help from his old competitor of Sweden, laid down his arms. On May 22, 1629, a treaty of peace was signed at Lübeck. Christian received back the whole of his hereditary possessions. In return he resigned all claim to the bishoprics held by his family in the Empire, and engaged to meddle no further with the territorial arrangements of Lower Saxony. [Sidenote: § 3. Necessity of healing measures.] If the Peace of Lübeck was really to be a source of strength to Ferdinand it must be accompanied by some such measures as those with which Richelieu was accompanying his victory at Rochelle. It was not enough to have got rid of a foreign enemy. Some means must be found to allay the fears of the Germans themselves, which had found expression in the resistance of Stralsund.