التحالف المقدس
On 22 October 1873, Bismarck negotiated an agreement between the monarchs of Austria-Hungary, Russia and Germany. The alliance sought to resurrect the Holy Alliance of 1815 and act as a bulwark against radical sentiments that the rulers found unsettling. It was preceded by the Schönbrunn Convention, signed by Russia and Austria–Hungary on 6 June 1873.