6. As soon as Otto left Rome, John responded by forming an alliance against the new Holy Roman Emperor
John immediately regretted relinquishing power to Otto in 962. He’d been after an ally, not a master, and felt that Otto had abused his power in exacting the title and treaty. Worst of all for John, Otto was exactly the sort of person he hated: pious, honourable, and moreover not scared of him. Otto in turn disliked the iniquitous John, but was willing to give him a chance. At a Synod in 962, Otto demanded that John change his ways, and then proceeded to treat him like a Pope and discussed boring issued about the church in Germany.
Thus the enraged John set about plotting Otto’s downfall as soon as he left Rome to fight Berengar. He sent letters and envoys to Otto’s sworn enemies, the Magyars, and even his own son, Adalbert, contriving to get rid of the troublesome (though currently useful) king. This proved a big mistake. Unfortunately for John, his beleaguered religious staff had finally found someone brave enough to stand up to their dreadful boss, and duly sent messengers to tell Otto what the man against whose enemies he was currently risking his life had done. Uh-oh…