Amt Beyenburg

Beyenburg castle was built in the early 14th century, but it is not mentioned as the seat of a bergisch Amt until 1399, by which time it had acquired four Gerichte covering modern Radevormwald as well as eastern Wuppertal. Lüttringhausen (originally part of Amt Bornefeld) and Unterbarmen (previously claimed by the Count of Mark) were both fully incorporated into Amt Beyenburg by 1420—the former as a new Gericht and the latter as part of the existing Barmen Gericht.  In 1746, a sixth Gericht (Ronsdorf) was formed by dividing Gericht Lüttringhausen.

 

Some sources include Barmen in the name of the Amt. Others, however, do not and I exclude it for the sake of brevity.