Tags: Legislature.
The Sejm of the Grand Duchy of Posen (German: Provinziallandtag des Großherzogthums Posen Polish: Sejm Wielkiego Księstwa Poznańskiego) was the parliament in the 19th century Grand Duchy of Posen and the Province of Posen seated in Poznań/Posen. It existed from 1823 to 1918. In the history of the Polish parliament it succeeded the general sejm and local sejmik on part of the territories of the Prussian partition.