NationWho rulesWhat it’s likeGood if your character is…
BrelandKing Boranel ir’Wynarn, ageing, with ParliamentThe largest and most diverse nation, industrial and pragmatic. Its spymasters are the Dark Lanterns of the King’s Citadel. Home of Sharn.A city kid, an investigator, a soldier, a schemer
AundairQueen Aurala ir’WynarnArcane, proud, cultured: the wizard-college of Arcanix, wine country, the Knights Arcane. Lost the Eldeen Reaches during the war and wants Thaliost back from Thrane.A wizard, an aristocrat, a patriot with something to prove
KarrnathKing Kaius III ir’Wynarn, from KorthMartial, cold, disciplined. Used undead soldiers in the war and still keeps them in storage. The Blood of Vol faith is common. Military academy at Rekkenmark.A veteran, a necromancer, a soldier with a code
ThraneTheocracy of the Silver Flame: Keeper Jaela Daran (a child) and the Council of CardinalsDevout, crusading, sometimes zealous. Occupies Aundair’s city of Thaliost.A paladin, an inquisitor, a pilgrim
Mournland (formerly Cyre)No one; rumours of a warforged warlord, the Lord of BladesDead-grey mist and impossible terrain.A Cyran refugee who lost everything
ZilargoGnomish Triumvirate (and the secret Trust)Polite, brilliant, terrifyingly well-informed. Neutral, wealthy, home of House Sivis.A scholar, a diplomat, a spy
DarguunLhesh Haruuc Shaarat’korA hobgoblin nation carved from Cyre and Breland by mercenaries who changed sides.A goblinoid soldier of fortune
DroaamThe Daughters of Sora Kell (three hag sisters)A nation of monsters (harpies, gnolls, medusas, ogres) building a real state. Not recognised at Thronehold.A monstrous or outcast character
Eldeen ReachesThe Great Druid Oalian (an awakened tree)Forests and farmland that broke from Aundair. Druids, shifters, Wardens of the Wood.A ranger, druid, shifter or farmer
Mror HoldsDwarf clans and the Iron CouncilMountain wealth and clan feuds. Home of House Kundarak, the bankers.A dwarf with a clan’s honour or debt
ValenarElf warlords under High King VadalliaElven horse-cavalry who seized southern Cyre. Their spirits ride with them.An elf warrior who lives for glory
Lhazaar PrincipalitiesRival sea-princesPirates, privateers and merchant fleets in the east.A sailor, smuggler or adventurer
Q’barra, Talenta Plains, Shadow MarchesFrontier settlers · halfling tribes · orc and human clansJungle frontier with lizardfolk and dragonshards · dinosaur-riding nomads · swamp druids and House TharashkA frontier character

Beyond Khorvaire: Aerenal (elves ruled by their honoured, undying dead) · Sarlona (the Inspired kingdom of Riedra, and the kalashtar who flee it) · Xen’drik (ruins, giants, drow, treasure) · Argonnessen (dragons; nobody is invited).

From the Eberron Player Primer. Public knowledge and rumour only.