A booming city-state built upon Heavens Bridge, a structure that allows passage between the Quon and Mindartia continents. Jeuno's national policy is one of neutral mercantilism, and is governed by a set of relatively loose regulations. This encourages a constant flow of traders of all races, from Hume shopkeepers to Goblin merchants, to visit this colorful, cosmopolitan town. Jeuno is also the only country to retain the ancient skills required to construct airships, which provides a rapid method of travel between nations.

At the time of the beastmen invasion several decades ago, this small nation took leadership of the countries of Vana'diel. Jeuno forged those countries into the Alliance of Altana, and succeeded in repelling the onslaught.

The military of the Duchy is far from an actual military. The guard is more of a police force in which the officers police the city.

The military force of Jeuno, the Ducal Guard, are police of the giant city. From commerce to industry, the guard regulate all commercial traffic in the city and watch over it's citizens.

A secret society of an unknown origin, membership, and purpose. Members of this group freely roam the city, but rarely speak to the public. Their purpose is seen as a mystery, but rumors circulate that they are responsible for much of Cid's knowledge in the arts of crafting and technology.