The Treaty (Convention) of Gastein was signed on 14 August 1865 in Bad Gastein, Austria.

Quick Scoop

  • Formal name: Gastein Convention (also called Convention of Badgastein).
  • Signing date: 14 August 1865.
  • Place: Bad Gastein, in Austria.
  • Main parties: Prussia and Austria, then the two leading powers in the German Confederation.
  • Context: It regulated how Prussia and Austria would administer Schleswig and Holstein after taking them from Denmark in the 1864 war.

In modern discussions and history forums, the treaty often comes up in debates about Otto von Bismarck’s step‑by‑step strategy toward German unification, since the arrangements of August 1865 helped set the stage for the Austro‑Prussian (Seven Weeks’) War of 1866.

TL;DR: When you ask “when was the treaty of Gastein signed,” the precise answer is 14 August 1865.

Information gathered from public forums or data available on the internet and portrayed here.