John VIII (872–882), allegedly poisoned and then clubbed to death[10] Stephen VI (896–897), strangled[11] Leo V (903), allegedly strangled[12] John X (914–928), allegedly smothered with pillow[13] John XII (955–964), allegedly murdered by the jealous husband of the woman with whom he was in bed[14] Benedict VI (973–974), strangled[15] John XIV (983–984), died either by starvation, ill-treatment or direct murder[16]