Duchy of Brunswick Herzogtum Braunschweig (German) | |||||||||
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| 1815–1918 | |||||||||
.svg)  Top: Flag (1815–1830)
Bottom: Flag (1830–1918)  Coat of arms
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.svg) The Duchy of Brunswick within the German Empire | |||||||||
 Duchy of Brunswick (orange) in 1914 | |||||||||
| Status | State of the German Confederation, the North German Confederation, and the German Empire | ||||||||
| Capital | Braunschweig | ||||||||
| Common languages | |||||||||
| Religion | Evangelical Lutheran State Church in Brunswick | ||||||||
| Government | Constitutional monarchy | ||||||||
| Duke | |||||||||
• 1813–1815 | Frederick William (first) | ||||||||
• 1913–1918 | Ernest Augustus (last) | ||||||||
| Legislature | Landesversammlung | ||||||||
| Historical era | Modern era | ||||||||
| 1815 | |||||||||
| 8 November 1918 | |||||||||
| Area | |||||||||
| 1910[1] | 3,672 km2 (1,418 sq mi) | ||||||||
| Population | |||||||||
• 1910[1] | 494,339 | ||||||||
| Currency | Thaler 1842–1856 vereinsthaler 1858–1871 Goldmark 1873–1914 Papiermark 1914–1918 | ||||||||
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| Today part of | Germany | ||||||||
The Duchy of Brunswick (German: Herzogtum Braunschweig) was a historical German state that ceased to exist in 1918. Its capital was the city of Brunswick (Braunschweig). It was established as the successor state of the Principality of Brunswick-Wolfenbüttel by the Congress of Vienna in 1815. In the course of the 19th-century history of Germany, the duchy was part of the German Confederation, the North German Confederation and from 1871 the German Empire. It was disestablished after the end of World War I, its territory incorporated into the Weimar Republic as the Free State of Brunswick.