Kinda wonder what ever happened to Ria, the former slave who spoke Germanic (or w/e the language was called) and I believe was originally from a nomadic tribe of horse-riders. I would've thought she'd be the plot line used to get horses from nomads, vs them introducing these new tribes that seemingly have no relation to her so far.
They showed her briefly in .1 of this chapter, I think she's married to or will be married to in the future the one guy with hair over his right eye.
She's part of the cavalry formed with the Germanic troops, so it would be very wise of her to be there with negotiations at the very least to look over the horses.
I think that flattening your nose like this would screw up your teeth and make it harder to eat.
Thus they probably eat overcooked dishes and have terribly spoiled teeth and disgusting breath (and they live shorter because of all that, lol).