Orleans was the richest and most influential of the four major Gallic cities. Its relativity democratic process, combined with its high trade rates, proved effective in generating wealth and political influence. It was the first Gallic State to have an organized army, and before the Gallic Unification war - which Orleans started and won - it was the most expansive Gallic state. Like its sister nations, it was officially dissolved in 13 AD after the war, but still served as the capital for the newly formed Gallic Empire.
The formation of Orleans was largely dictated by Enchar - the man largely regarded as the first centralizing figure in Gallic history. He led Orleans long before it became a nation, through a combination of wealth and dominance over local trade. Eventually, he was able to amass enough power to officially declare himself the monarch of Orleans. This declaration went over surprisingly well with the populace - Enchar was a popular figure and considered responsible for Orleans' wealth. In order to soften the blow of creating a monarchy, a senate was also created to represent the populace.
After decades of essentially remaining a city and the surrounding farms, Orleans decided to go on a mission to expand. The bulk of this expansion was angled to the southwest, along the bend of what was commonly called the River of Orleans. Not only was this land easy to access, but its plentiful land and fertile soil allowed several smaller towns to arise and Orleans' population to increase massively. This led to an increase of influence for Orleans, as it allowed them to recruit more soldiers, trade more and in general, become more successful as a nation.
Gallic Unification War
As the State that started the war, Orleans was by far the most successful state in the war, pretty much by default. In fact, after the battle in Paris, the war had a very limited effect on the citizens, and even measurably improved their economy. Heldarc proved a deadly effective leader on the battlefield, winning every battle he had the chance too. Off the battle field he was also successful, raising the moral of the city and keeping domestic issues in order. The war would catapult Orleans to a much more powerful position over its neighbors, and would allow it to influence the emergence of Germanic states. Ultimately, the Gallic Unification War would move Orleans from the position of a relatively powerful state in Northern Gaul, to the position of a great power across Europe.
Because of the early creation if a Senate, Orleanian politics surprisingly favored the populace more than the royalty. While this was a delicate balance - after all, the Monarch always held veto power - it was largely maintained because of the monarchy's fear of losing their grasp on power. Then put most of the day to day decision making in the hands of the senate, whose fifty members tried to improve life as much as possible. This model was extremely successful in both the short and long term, and ultimately allowed Orleans to take over the other Gallic States.
Orleanian society was probably the most aggressively capitalist and trade focused of all the Gallic States. Even once farming became a more viable option, it was looked down upon in favor of more lucrative professions, such as trade, or various forms of craftsmanship. Despite this extreme capitalism, poor people were generally cared for, or at least received generous donations from the wealthier class. Much of the population fell into a sort of middle class, with their jobs primarily relying on trade or farms.