Pope John X
In order to counter the influence of Pope John X (whom the hostile chronicler Liutprand of Cremona alleges was another of her lovers), Marozia subsequently married his opponent Guy of Tuscany. Together they attacked Rome, arrested Pope John X in the Lateran, and jailed him in the Castel Sant'Angelo. Either Guy had him smothered with a pillow in 928 or he simply died, perhaps from neglect or ill treatment. Marozia seized power in Rome in a "coup d'état". The following popes, Leo VI and Stephen VII, were both her puppets. In 931 she even managed to impose her son as pontiff, under the name of John XI. John was only twenty-one at the time.