Berg

Berg was a county on the lower Rhine, with its court at Düsseldorf. In 1337 Count Adolf IX of the House of Limburg ruled the territory.

After Adolf died in 1348, Berg passed through his daughter to the House of Jülich; Jülich-Berg became a duchy in 1380. Berg passed to Cleves in 1511 and to the Neuburg Wittelsbachs in the 1614 partition. Napoleon made Berg a grand duchy in 1806; Prussia absorbed it in 1815.