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Duke of Brunswick-Lüneburg

Duchy of Brunswick-Lüneburg
Herzogtum Braunschweig-Lüneburg
State of the Holy Roman Empire
1235–1806


Coat of arms

Brunswick-Lüneberg as part of the Holy Roman Empire, c. 1648
Capital Brunswick,
Lüneburg
Languages West Low German
Government Principality
Historical era Middle Ages
 •  Henry the Lion defeated; Saxony divided; Henry reinvested with Welf allod 1180

1181
 •  Allod elevated to Duchy of Brunswick and Lüneburg 1235
 •  Partition into Lüneburg and Brunswick 1269
 •  Grubenhagen formed 1291
 •  Göttingen formed 1345
 •  Brunswick splits into Wolfenbüttel and Calenberg 1432
 •  Joined Electoral Rhenish Circle
 •  The end of the Holy Roman Empire 1806
Preceded by
Succeeded by
Duchy of Saxony Duchy of Saxony
Electorate of Hanover
Duchy of Brunswick


Coat of arms

The Duchy of Brunswick-Lüneburg (German: Herzogtum Braunschweig-Lüneburg), or more properly Duchy of Brunswick and Lüneburg, was an historical ducal state from the late Middle Ages until the late Early Modern era within the North-Western domains of the Holy Roman Empire of the German Nation, in what is now northern Germany.

The dukedom emerged in 1235 from the allodial lands of the House of Welf in Saxony and was granted as an imperial fief to Otto the Child, a grandson of Henry the Lion. Its name came from the two largest towns in the territory: Brunswick and Lüneburg. The duchy was divided several times during the High Middle Ages amongst various lines of the House of Welf, but the rulers all continued to be styled as the "Duke of Brunswick-Lüneburg" in addition to their various particular titles. The individual principalities making up the duchy continued to exist until the end of the Holy Roman Empire in 1806. Following the Congress of Vienna in 1814/15, the territories became part of the Kingdom of Hanover and Duchy of Brunswick.


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