Konrad holds an MA degree in Modern History. He studied in Jena, Germany, and Leiden, Netherlands. He has published several books on castles in Germany and Israel as well as on sword fighting. Lately, Konrad had done a major research project on the weapons in the Schwarzburg Armory. From his childhood on Konrad has been fencing and for the last 20 years focusing on longsword and dagger fighting. He is the Head of the German section of KDF International and a senior instructor in Historical Weapons Combat. He has been teaching at national as well as international events and gives a regular course at the University Sports Centre of the University of Applied Sciences Jena.
Rolf is the founder of the Society for Combat Archaeology (SoCA). He holds an MA degree in Maritime Archaeology from the University of Southampton and another MA degree in Prehistoric Archaeology from the University of Copenhagen. His studies have preeminently been on the subject of combat and conflict in the past, ranging from Mesolithic violence to organized state formation in the Renaissance. He has achieved the rank of sergeant in the Royal Danish Army. In addition to this, Rolf is the chief instructor of Weapons Combat Systems, a weaponry-based martial art which he teaches on both a national and international level through classes, seminars, etc.