Hungary still exists, it was kind of a puppet of Rome for a while but was not annexed. I'd need a better map with rivers and to be better at this to be able to do that, but that sounds better.
That's what I was trying to do, but again my map has no rivers on it. I'll have to find a better map.
I was trying to go for that, but can't tell where the Alps are. This thread has really made me realize how shitty my source map is.
Thanks; I just wanted to check and see what you were thinking of it going. Makes a lot more sense in my head now.
Well the Sultanate of Rum was still around when the Mongols came, just smaller. But there was some impact on the Empire. Probably something like OTl, with the Byzantines paying tribute. Don't have any ideas beyond that.
Only big problem I see with the Byzantines being that weak that they are continuing to pay tribute (and still dealing with the sultanate) pushes back the timeline about two centuries. It would likely be overly fortunate if the Byzantines are able to recover enough to beat the Mongols, but what of enough to nudge them to the side?
I'm currently imagining the Byzantines and the Crusaders being wanked (Crusader/Byzantine division of Egypt, Damascus falling, etc), recovering quite a lot of territory (alongside the Kingdom of Georgia). While the region is still vulnerable to the Mongols, they instead turn north and penetrate deeper into Europe - Hungary taking more raids, and even Padania being subject to Mongol raids, devastating the region. This does a few things: it weakens Hungary, a foe to the Byzantines at this time, and leaves Italy vulnerable and needing stabilization.
Now, the Byzantines also can't tick off the French, as they were a demographic powerhouse at the time. It was why the idea of a loose dynastic union with the two was interesting - it would allow for a Franco-Roman relationship to develop akin to the Franco-Ottoman one centuries later. A more pro-latin Empire helps as well - one that will integrate the Crusader states at some point down the line.
So a vulnerable Italy ends up with both Sicilies back in the empire, the French possibly supporting the North as well (perhaps even Venice/similar is taken by the Romans?). The Romans also manage to reacquire all of Illyria and push the Hungarians and the Vlachs/Cumans/Bulgarians back over the Danube, which sets their northern border for centuries. That gives them the peace they need to reintegrate land and similar.
This French and Roman presence upsets the Pope, who feels threatened (the French were very fond of setting up their own Anti-popes, after all). Eventually, the Pope flees to the Holy Roman Empire due to some event, while Italy is divided between Roman and French interests.
And from there it keeps building on - this is all very vague, but just a thought that needs a lot more support to become plausible.
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One thing I didn't address was the African borders - the Sahara tends to be divided up in straight lines as there are few geographic and population centers to otherwise define the sand. It's far more likely that this Rome, as strong as it is, owns large chunks of sand due to its overall power.
Now, that isn't to say there can't be an Islamic African state that is strong - there certainly can be, but I feel it'd be based primarily around West Africa and extending North, rather than being based in the Sahara.