Tugendbund, or League of Virtue was a quasi-Masonic secret society founded in June 1808, in order to revive the national spirit of Prussians after their defeat by Napoleon.
The three masonic lodges of Koningsberg who established Tugendbund, officially named it "Scientific society for the exercise of morality" (Sittlich Wissenschaftlicher-Verein).
Despite the fact that the specific society was approved by Frederick William III on June 30, 1808, it met the hostility of Heinrich Friedrich Karl vom und zum Stein who sought to promote his own view on the Prussian reforms.
[1] Soon another member of Tugendbund, Wilhelm von Dörnberg, former military, led another uprising, aiming to occupy Kassel, the capital of Westphalia.
Society was established on a network of groups dedicated to cultivating patriotic feelings, with ultimate goal the liberation of German territory from French occupation.