CHAPTER XVII. Murder of Callinicus, governor of Cilicia--His property confiscated by Justinian--Theodora's severe measures against prostitutes--She compels two girls of noble birth to marry--Her frequent abortions--Disappearance of her natural son, John--Corrupt morals of the ladies of the capital--Theodora disposes of ecclesiastical dignities--Takes upon herself the general superintendence of marriages--Adventure of Saturninus--Persecution of John of Cappadocia..