Caucus Knights

Everyone bases their knights off of western Europe's chivalric tradition, but I found that the border region near the Caucasus has some real cool knightly stuff to offer, I think. Instead of Arthur, Roland, and Quixote, there's Avtandil, Tauriel, Digenes Akritas, David of Sassoun, Lion-Mher

How would you go about adapting this version of chivalry and knights to a game, something like Pendragon?

I'll post cool pictures of knights from the region in the mean time

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