Antinia is easily the most internally fractured of the nations, with the average person having little in common with the next beyond sharing a language and paying lip service to the New Velucan Faith. The lands of the Antinian Triumvirate are temperate forests and grasslands, suitable for respectable production of food and wood, with some minor mineral resources as well. In truth the nation would be largely beneath notice were it not home to some of the most valuable trade routes in the land due to being where the majority of banks in Patrocia are headquartered.

Deft diplomacy and establishing trade deals with their neighbors has allowed Antinia to maintain little in terms of a national standing army, choosing instead to force major trade partners to agree to clauses that grant them defensive pacts with a few major nations, as well as allowing each merchant family to have their own guards and mercenaries. Wealthier families can possess small armies that rival garrisons of major settlements in other nations. Should that fail, they also have vast sums of money that are earmarked for hiring mercenaries and assassins for defense

Antinia is a bit like the kingdom of Ossik, minus the nobility, tradition, and honor.
Antinia is ruled by the magistrates, who in turn answer to the three high ministers. In theory, this allows the three most experienced leaders to govern as equals and cooperate, each able to govern more closely their given duties, and delegating to magistrates when it's needed. In practice, the government of Antinia is a constant power struggle where all smiles hide daggers. The most ruthless takes all in a grand game of the highest stakes, and loyalty exists only to coin and oneself.  Despite all their internal strife, the one thing that everyone agrees on in Antinia is that other nations must be held to the very letter of the contracts they sign and violations are to be met with swift and brutal economic retribution.

I would detail the current three high ministers, but such information would likely be rendered obsolete within a year. As soon as one high minister pulls ahead in power (and they’re always trying to pull ahead), the other two see to it that they are torn down. Such it has always been, such it will likely always be until a truly unstoppable ruler can overcome the other two’s high minister’s combined power.