was he a real raconteur? Anyway, he has this great story about escorting Austrian cavalry brigade to a surrender in 1805. During it he says that in the Austrian army the Hussars were hungarian, the Dragoons were germans, and the Uhlans were polish. Is it true?
If you consider the origin of these branches of arms, they surely are. But remember that "German", in the Austrian Army, means "Austrian" (and not from "Germany" - which didn't exist, anyhow), as opposed to Hungarian.
Apart from that, Marbot is a nice storyteller, but NOT a reliable historical source !