you got fucking kings, Torygg, Helseth, living gods of the Tribunal.... under an "Emperor"? who puts some garrisons around but does.... what exactly?
theres an "East Empire Trading Company"? whats that do?
it kinda seems like a holy roman empire, kinda seems like a regular roman empire. they've got knights, dukes, but a Legion...
yes i know the answer is technically "these jackoffs just made it up as they went" and don't care a lick about political theory but this is exactly the kind of excercise that makes fun speculative historiography
don't elves live for ages maybe they are literally the same people hence keeping the name
It appears to be class-based, big name mer wizards seem to live forever, nobles age but live for as long as the plot requires, and commoners just keel over before their 200th birthday
So any overlap would be minimal