The Free City of Erideos was a fully-independent city state that heralded the arrival of the third age. The city acted as a mediator between the three Eridean factions between the Second and Third Hibrean Wars.
During its existence it was the richest and most prosperous state in Erideos, rivaling the economies of whole factions. It was also a safe haven for refugees of each region, functioning as a fully neutral state.
The city-state was destroyed in the midst of the Great Hibrean Split.