Inspired by the illustrious Mr. Marsden's ongoing fixation with Napoleonic fencing, I undertook to search the amazing InterWeb with terms Von Bluecher plus fencing and - Abracadabra! - this image of miltary duelling was found!
Click it to expand and check it out goodly readers: See how the mighty Field Marshal hews with his trusty sabre to smite the wretched Emperor foining with his nasty rapier. Attending the former are a couple of reserved German burghers with smoke & drink, plus a ready Russian cossack & horse with lance. Attending the latter are a trio of gesticulating French generals with their own rapiers. And last but not least, a dignified British sailor with cutlass stands centred to adjudge the highly important fencing match.
Even Baron Munchausen would be impressed ;-)
My thanks to these entities for providing access & information, wherefrom more may be learnt about that very entertaining political cartoon:
Die Fechtstunde (The Fencing Lesson) (1814)
JG Schadow (1764-1850)