No trouble (the bit about Gros and David was, of course, an exaggeration or downright lie, though there is a picture of N at F's tomb, and this was intended for a basso-relievo on some monument in Paris). In addition to F's sword, and the belt & sheath, N also took some of the colours borne by the Prussian Guard all those years previously; this, if accurately recorded, does seem a bit forceful, since as far as I understand it colours taken in a battle would be retained as trophies, but not those from earlier wars.
Anyway, glad to know there are some singers with an interest in every detail of a historical song. There's another Thread at present about The Isle of St Helena (can't recall if I've seen your own name there). Good Luck.

ABCD, Citoyen, Sans-Culotte, all for Liberty, Equality, and Fraternity, but sufficiently grounded in the Reason promoted by the Philosophes of the Enlightenment, and aware of the excesses of the Mob when steered by people with their own agendas, to recognise the dangers of allowing slogans to be accorded an importance as mere sounds to be bayed incessantly rather than subjected to logical analysis. A personal observation which may be made calmly here without fear of brutish shouting-down.