| Grand Duchy of Posen | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Client state of Prussia | |||||||||
| 1815–1848 | |||||||||
 Coat of arms
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 The Grand Duchy of Poznań in 1815 | |||||||||
 Map of the Grand Duchy of Poznań (place of storage: State Archives in Poznań) | |||||||||
| Capital | Poznań | ||||||||
| Area | |||||||||
| • Coordinates | 52°24′N 16°55′E / 52.400°N 16.917°E | ||||||||
• 1848 | 28,951 km2 (11,178 sq mi) | ||||||||
| Population | |||||||||
• 1848 | 1,350,000 | ||||||||
| Government | |||||||||
| • Type | Absolute monarchy | ||||||||
| Grand Duke | |||||||||
• 1815–1840 | Frederick William III | ||||||||
• 1840–1848 | Frederick William IV | ||||||||
| Governor | |||||||||
• 1815–1830 | Antoni Radziwiłł | ||||||||
• 1830–1841 | Eduard von Flottwell | ||||||||
• 1841–1848 | Adolf von Arnim-Boitzenburg | ||||||||
| Legislature | Sejm | ||||||||
| History | |||||||||
| 9 June 1815 | |||||||||
| 19 March 1848 | |||||||||
| 5 December 1848 | |||||||||
| |||||||||
| Today part of | Poland | ||||||||
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The Grand Duchy of Posen (German: Großherzogtum Posen; Polish: Wielkie Księstwo Poznańskie) was part of the Kingdom of Prussia, created from territories annexed by Prussia after the Partitions of Poland, and formally established following the Napoleonic Wars in 1815. Per agreements derived at the Congress of Vienna it was to have some autonomy. However, in reality it was subordinated to Prussia and the proclaimed rights for Polish subjects were not fully implemented. On 9 February 1849, the Prussian administration renamed the grand duchy the Province of Posen. Its former name was unofficially used afterward for denoting the territory, especially by Poles, and today is used by modern historians to refer to different political entities until 1918. Its capital was Posen (Polish: Poznań).