Name given to the treaty signed by Emperor Francis I of Austria, King Frederick William III of Prussia, and Alexander I of Russia. It was distinctly religious in character and states that the rule of tbeir future administration is to be based on Christian morality. The Church authorities regarded the alliance with coldness. It was due to the transitory pietistic feeling of the Czar Alexander; and was afterwards replaced by purely political alliances. The treaties of the era (1815-1823), when Metternich's influence was at its height, revive the conception of a centralized Europe and a common European responsibility. The revival of religious feeling induced him to allow the words "proper application of the principles of Christianity to politics."