Which Happened First?

Duchy of Warsaw

Duchy of Warsaw — Image: Avalokitesvara This W3C-unspecified vector image was created with Inkscape . using by Sodacan and unpublished Orders and Postument created by Steifer · CC BY-SA 3.0 · source

The Duchy of Warsaw was a French client state established by Napoleon Bonaparte in 1807, during the Napoleonic Wars.

Summary from Wikipedia (CC BY-SA 4.0) · Dates from Wikidata (CC0)

Which happened first?

Duchy of Warsaw and Kingdom of Westphalia began in the same year
Duchy of Warsaw and Free City of Danzig began in the same year
Duchy of Warsaw began 1 year after Kingdom of Saxony
Duchy of Warsaw began 1 year after Kingdom of Bavaria
Duchy of Warsaw began 1 year after Kingdom of Württemberg

Timeline

Kingdom of BavariaJanuary 1, 1806 – November 9, 1918
Kingdom of SaxonyDecember 20, 1806 – November 11, 1918
Kingdom of WürttembergJanuary 1, 1806 – November 6, 1918
Duchy of Warsaw (this page)1807–1815
Free City of DanzigSeptember 9, 1807 – January 2, 1814
Kingdom of Westphalia1807–1813

Related

Play a round with World History · 19th century