I spent a year in the company of a dueling Verein in Munich a few decades ago and was startled to be at parties where every fourth male had a a scar.

There was what looked like a swimming pool in the basement that was in fact a sort of dug-out that made room for the swords in air (otherwise they would hit the ceiling), and the library was chock-full of material from the Third Reich - not that it was utilized, but it was part of the historical dressing.