Look out,we’ve got a Pope that actually lasted more than a few weeks! Pope John IX was Pope for two whole years,which at this point in history,was a minor miracle,especially considering the reign of the four Popes in front of him barely amounted to an entire year combined. Before John was elected,supporters of a Bishop named Sergius stormed the Lateran Palace and installed their man into office. Holy Roman Emperor Lambert would have none of that so he had imperial guards forcefully removed Sergius before he could be officially sworn in. Sergius was a patient man though,and he would hide away in exile,biding his time(he will eventually reach the Papacy in six years)
The imperial guard made sure that a Bishop favorable to the Emperor was elected and once elected,John made sure to do his best to try and bring stability to Rome and the Church which had been lacking since Pope Formosus. John achieved this by calling various synods that both helped in strengthening ties with the Empire and by further cleaning up the messes caused by insane Pope Stephen VI.