Arenberg

County (Duchy) of Arenberg
Grafschaft (Herzogtum) Arenberg (German)
1549–1810
Flag of Arenberg
Flag
Coat of arms of Arenberg
Coat of arms
The Duchy of Arenberg in 1807 after the Napoleonic relocation
The Duchy of Arenberg in 1807 after the Napoleonic relocation
StatusState of the Holy Roman Empire, then
State of the Confederation of the Rhine
CapitalAremberg
Common languagesMoselle Franconian
GovernmentPrincipality
Historical eraMiddle Ages
Early modern period
• County established
c. 1117
• Gained Reichsfreiheit
1549
• Raised to Princely county
1576
• Joined Council of Princes
1580
• Raised to Duchy
1645
 
1806
• Mediatized to Hanover
    and Prussia
1810
Preceded by
Succeeded by
Prince-Bishopric of Münster
Electorate of Hanover
Kingdom of Prussia
First French Empire
Grand Duchy of Berg

Arenberg, also spelled as Aremberg or Ahremberg, is a former county, principality and finally duchy that was located in what is now Germany. The Dukes of Arenberg remain a prominent Belgian noble family.