I forgot to add, since it's relevant to Tautom where like.. 50% of the IC currently takes place:

Tautom City houses a tremendous population unlike seen anywhere in the world. It is Visandza’s sole sprawling megalopolis to remain in the style of antiquity, with a staggering population from 100k up to 200k people. Each Tautan district is a city inside a city. Contrast this to Chlotaringen's capital of Aaixen, which has only roughly 10.000 inhabitants, and even that is considered a major city for the time.

Vast majority of people in the Barbarian Kingdoms live a rural lifestyle away from cities, as tribes do. What constitutes a city in this time, particularly a royal capital, is a castle or longhouse surrounded by housing districts for servants and their families. Aaixen is in a sense nothing more than a glorified fortress surrounded by houses where families of the royal staff live.