Lably
Skip to content

1920 East Prussian plebiscite

Referendum on whether to become part of Poland

  • 16 min read
  • 5 chapters

Related on Lably

Through Self-determination, Treaty of Versailles and Weimar Republic

Prepared in early 1920, the plebiscite took place on 11 July 1920 and was conducted by German authorities under Inter-Allied control.

The plebiscite reported that most voters had selected East Prussia over Poland (over 97% in the Allenstein Plebiscite Area and 92% in the Marienwerder Plebiscite Area). As a result, most of the territories in question remained in the Free State of Prussia and therefore in Germany.

Background

The area concerned had changed hands at various times over the centuries between the Old Prussians, the monastic state of the Teutonic Knights, the Duchy of Prussia, Germany and Poland. The area of Warmia had been part of the Kingdom of Prussia since the first Partition of Poland in 1772, and the region of Masuria was ruled by the German Hohenzollern family since the Prussian Tribute of 1525, as a Polish fief until 1660. Many inhabitants of that region had Polish roots and were influenced by Polish culture. The last official German census in 1910 classified them as ethnic Poles or Masurians.

During the German Empire, harsh Germanisation measures were enacted in the region. The Polish delegation at the Paris Peace Conference, led by Roman Dmowski, made a number of demands in relation to areas that had been part of the Polish–Lithuanian Commonwealth until 1772. Despite their protests, supported by the French, US President Woodrow Wilson and the other Allies agreed that plebiscites according to self-determination should be held.

In the former German Province of Posen and parts of West Prussia, an armed revolt had already removed the German authorities in 1919.

Sign in to keep reading

4 more chapters are free with a Lably account.

More in Modern