Places Hardenberg Hardenberg, a municipality and city in Overijssel, Netherlands Nörten-Hardenberg, a municipality in Lower Saxony, Germany Hardenberg Castle, ruin at Nörten-Hardenberg, ancestral seat of the lower-saxonian House of Hardenberg Schloss Hardenberg, castle once owned by the westphalian House of Hardenberg in the German town of Velbert Neuhardenberg, a municipality in Brandenburg, Germany. Formerly residence of the Prussian statesman Prince Karl August von Hardenberg Hardenberg, the former German name for Twarda Góra, Poland
Hardenburg Hardenburg, California, United States
Hardenburgh Hardenburgh, New York Hardenbergh Hall, Rutgers University Hardenburgh Avenue Bridge, Demarest, New Jersey Hardenburgh, Indiana (now known as Hayden)
People Hardenberg (surname)
See also Hardenberger Hardenbergh von Hardenberg