:P

Actually, my best moment in that regard was beating the hungarians as the byzantines.

I was counting on them to hold my flank when i dealt with the venetians and the turks, but no, they had to happily inform me that we were no longer allies.

Twenty or so turns later, i happily informed them that they no longer existed (now i think about it, one thing this game needs is a list of status changes, so you can look back and see that in 1124 you declared war on faction x, and were backstabbed by faction y in 1200).

But yeh, the milanese were a real pain in my english campaign too :P