What is origin of names Albania and Iberia in Caucasus compared to European Iberia and Albania? So I couldn't find anywhere theory about the origin of "Albania" in the Caucasus. What could be the reason for Greeks/Romans to name places like that? It's especially interesting because this is not the only case of "Alban-" names (like Albany). Is there any good theory on this one ("white" or something)?  
Same for Iberia, European Iberia is fine (Ebro/Ibro river), but what is with Causasus Iberia?