Jan Schäfer has been doing historical fencing since 2003, and is especially interested in German-language sources from the 17th and 18th centuries. He teaches from these sources in his home club Schwertspiel e.V. Verein für traditionelle Kampfkünste in Dresden, of which he is a founding member. Furthermore, Jan publishes his research into fencing treatises, their authors, and their context on his well-regarded blog Fechgeschichte.