While the Free Folk are generally regarded as untrained savages, the Thenns are the exception to the rule. Thenns are still known to be brutal fighters, they are a breed apart due to their discipline in comparison to other Wildling cultures and a feudal system similar to that of the rest of Westeros. They forge their own arms and armor of bronze instead of pilfering from others. The Magnar of Thenn is essentially viewed as a god in Thenn society. As far as I know, we never see Styr or any o