Gastein, Convention Of

Also called �Convention Of Badgastein, � agreement between Austria and Prussia reached on Aug. 20, 1865, after their seizure of the duchies of Schleswig and Holstein from Denmark in 1864; it temporarily postponed the final struggle between them for hegemony over Germany. The pact provided that both the emperor of Austria and the king of Prussia were to be sovereign over the duchies, Prussia administering Schleswig