Duchy of Berg

County (Duchy) of Berg
Grafschaft (Herzogtum) Berg (German)
Graafschap (Hertogdom) Berg (Dutch)
1101–1815
Left: Arms of Bergins (from around 1225), who ruled the Duchy of Berg last
Right: Coat of arms of the Duke of Berg
Map of the Lower Rhenish–Westphalian Circle around 1560, Duchy of Berg highlighted in red
StatusDuchy
Capital
Common languagesGerman
GovernmentAbsolute monarchy
Duke of Berg 
 1360–1380
Wilhelm II (first duke)
 1809-1813
Napoléon Louis Bonaparte (Grand Duke)
Historical eraMiddle Ages
 Emergence from Lotharingia
1101
 Split with County of Mark
1160
 United with County of Jülich
1348
 United with County of Mark and Duchy of Cleves
1521
1609 and 1690
 Awarded to Prussia
9 June 1815
Preceded by
Succeeded by
Lotharingia
Kingdom of Prussia

Berg (German pronunciation: [bɛʁk] ) was a state—originally a county, later a duchy—in the Rhineland of Germany. Its capital was Düsseldorf. It existed as a distinct political entity from the early 12th to the 19th centuries. It was a member state of the Holy Roman Empire.

The name of the county lives on in the modern geographic term Bergisches Land, often misunderstood as bergiges Land (hilly country).