User blog comment:Deathblade 100/Conquerors, Legions and Blood: Roman Empire vs Alternate Aztecs (Crusaders Kings 2)/@comment-28716800-20200207055044/@comment-25242759-20200207061939

More an upgraded version given the lore states they've entered conflict with the Incan Empire of Peru and have subjugated the Plains Indians. They're only limited by their Stone Age era weapons and cotton armour.