This is the overview of my setting's "protagonist" state political organization: So, I have a few questions re:the above: 1) Are there any holes that really need adressing? 2) How stable/unstable will such system be? I know that Byzantine Empire had regular "elections" (read: thematic armies beating up each other over who will be the Emperor) but what about other aspects - importance of cities (since here cities do have some tradition of self-governance) etc..? 3) Which corner are disturbances most likely to come from? Personally, I'd say that it would be provincial governors, but is there anything I'm missing?