From the LGCS 597:
Once the Golden Sun of Aerdy was the light of the Flanaess, a shining bastion of civilization and culture. Now that sun is
splintered into a handful of successor states, struggling amongst themselves to reclaim some small fragment of their glorious birthright. In the heartlands of Aerdy, two Overkings vie for a debased throne, a tarnished crown and a lost city. In the south the states of the once proud Iron League fight desperately to resist the insidious tendrils of the Scarlet Brotherhood and their nested conspiracies to restore another lost empire - the ancient Suel Imperium.
The Splintered Suns regions and their corresponding European states are: Ahlissa/Adri (Austria and Germany), Ahlissa/Naerie (Scandinavia), Bone March (Greece), Lordship of the Isles, Onnwal (Ireland and United Kingdom), Sea Barons (Italy), Sunndi (Benelux) and Dullstrand (Switzerland).