Today's challenge is preventing the Imperial Sack of Rome. How? You choose (But try to use post 1520 PoD(s), please.).
Edit:
My fault, I meant after 1525.
Since it seems a few of people have been debating this in other threads, I thought it would be interesting to see what the general consensus is as I find this question rather interesting.
One could argue that since the Empire was partioned following the 4th Crusade the political continuity that...
