I am quite familiar with the von Romberg family. Their Brünninghausen Palace
is inseparably linked with the highly regarded landscape garden created here by the Düsseldorf court gardener Weyhe. A truly idyllic garden with linden avenues and winding paths. There's even something for you, Alfred: rust-red ferruginous springs spring up here, partly from old coal mines.
The "Steel Time Travelers" Luise & Alfred: Botanical Garden Rombergpark
www.gaerten-in-westfalen.de > Die Gärten u. Parks > Ruhrgebiet
The area is accessible 24 hours a day.