S'mon said:Re Shogun - Thrin would love for Ulfius to become Shogun ("Marshall" or similar) to a figurehead Emperor. The Japanese analogy is interesting, thanks, though my political stuff in the game comes more from Machiavelli.- Tarkane to a large extent is based off Mussolini.
Maybe it could still work - Ulfius steps in and gains control of the armed forces of the Overkingdom in response to some "great menace". Of course Ulfius maintains that Tarkane is really the rightful ruler of the kingdom and the mouthpiece of Odin, but in practice Ulfius takes on an increasing role in rulership - eg. ambassadors now visit Ulfius because the Overlord is "too busy" with his religious duties. I think all politics of any era can be seen as Machiavellian

S'mon said:Re Electors - in the Norse part of my campaign world King Sigurd of Trafalgis was chosen as king by a Council of Jarls in just this fashion, I guess the Elector system might have had Norse/Teutonic roots? That would explain why it seems so un-Roman.
Yes, in fact Tacitus IIRC was one of the first to note the sort of "rulership by consensus" tendencies of the Germanic tribes. Apparently rattling their spears and shields was the favorite way to approve/disapprove in a council.
S'mon said:The Jarls of Trafalgis would demand the right to name the next king after Sigurd too, good point to bear in mind...
I was reading about the Polish-Lithuanian confederacy which was similar to the Elector system but even more de-centralized. My view of human nature/history is that rulers always try to keep as much power as possible, so I think it's highly likely that the Jarls would seek to codify their role as electors of the King - especially in this sort of "Teutonic" culture where a king ruling without favor of the ancient and pretigious noble families would be seen as inappropriate.
S'mon said:In the Overkingdom by contrast there's pretty much a void when it comes to high-level representative institutions, it's a post-colonial state
Is this because of design, or have you just not gotten around to detailing certain parts of the Overkingdom? I'm not quite sure of what "high level representative institutions" means. As you've said, there seems to be no strong, independant source of clerical authority at this point (eg. no Oracle of Delphi). Do the cities have charters and rule themselves? Do the old governors of the provinces weild power as feudal lords? Were there old tribal organizations that would have surivived in part during the empire? (tribal bonds AFAIK are often ethnic and not easily dissolved when there is a change in political power)