Beginning in 1618, Schwelm belonged to the Duchy of Brandenburg-Prussia. Names Schwelm, Kr. Ennepe-Ruhr, Nordrhein-Westfalen Surnames Bruckmann* Duxberg Hans (Unknown)* Kalstadt* Kuntzenbach* Source(s) Schwelm (German Wikipedia) Schwelm (Meyer's Gazetteer Online) Painting of Schwelm in 1836 showing both the Lutheran and the Catholic Churches.By Johann Gustav Lange (1811-1887).Source: Wikipedia Commons. 51.284167, 7.29333 Volga Colonies Cäsarsfeld Katharinenstadt Biberstein Bettinger Biberstein