I have always found it interesting that the early Hungarian migrations of the ninth and tenth century have never been the subject of much alternate history discussion aside from speculation as to where they could have ultimately settled aside from Pannonia. After all, they were able to raid much of Europe during this time, striking in lands as far west as Al-Andalus.
https://en.m.wikipedia.org/wiki/Hungarian_invasions_of_Europe
Now, there is obviously a huge difference between successfully raiding an area and successfully conquering an area, but therein lies my question: assuming that they had rolled all sixes in the course of their invasions, how big of an impact could the Hungarians plausibly have had? Could they have done to Europe what the Mongols had done to China? Could a Hungarian conqueror have taken Constantinople or Rome and declared himself the new Roman Emperor? How much territory could they have physically conquered and held at one time, and what would have been the long-term ramifications of that?
https://en.m.wikipedia.org/wiki/Hungarian_invasions_of_Europe
Now, there is obviously a huge difference between successfully raiding an area and successfully conquering an area, but therein lies my question: assuming that they had rolled all sixes in the course of their invasions, how big of an impact could the Hungarians plausibly have had? Could they have done to Europe what the Mongols had done to China? Could a Hungarian conqueror have taken Constantinople or Rome and declared himself the new Roman Emperor? How much territory could they have physically conquered and held at one time, and what would have been the long-term ramifications of that?