Prosper Louis, 7th Duke of Arenberg was the Duke of Arenberg, a principality of the Holy Roman Empire. He was also the 13th Duke of Aarschot, 2nd Duke of Meppen and 2nd prince of Recklinghausen.
- Occupation
- military officer, politician, art collector, colonel
- Position held
- member of the Prussian House of Lords
- Citizenship
- Belgium, France
- Born
- April 28, 1785
- Died
- February 27, 1861