Its early - Protestant sympathies placed it on the side of Sweden during the Thirty Years' War, and in 1628 it successfully resisted a siege of eleven weeks by Wallenstein, who had sworn to take it "though it were chained to heaven."
Reishaus, Wallenstein and die Belagerung Stralsunds (Stralsund, 1887).
The dismissal of Wallenstein, which is often attributed to the work of Father Joseph, Richelieu's envoy to the diet of Regensburg in July and August of 1630, was due rather to the fears of the electors themselves, but it was of double value to Richelieu when his Swedish ally marched south.
Reichenberg is first mentioned in a document of 1348, and from 1622 to 1634 was among the possessions of the great Wallenstein, since whose death it has belonged to the Gallas and Clam Gallas families, though their jurisdiction over the town has long ceased.
Wallenstein made ready to give battle on the following day and recalled Pappenheim.