There were two civil wars happening in Hungary at the same time while a crusader was being called on me after I made the HRE go home crying. It failed miserably. I did need to cheat a BIT but it wasn't that bad I just used it to call in my own holy order seeing as the damn crusade had three of it's own and multiple lords. The HRE didn't even contribute what was left of it's minuscule military. The funny thing is BOTH rebels in hungary were on my side during that crusade. It was the hungarian rebels and the Holy Romuva Empire vs. The Pope and his cronies. Hungary used to be uber powerful and I basically leeched off their special event spawn troops to overpower the slavics thanks to marriage ties then they had the bright idea to turn on me personally and I used the COP holy order to force a white peace so I could actually continue playing. Worst part they declined my request for help to join my half brother to do so. I've been trying to do some hellenic stuff but like the aztecs they're so out of luck in europe.