had a relatively destructive effect on the centre of power. Plautianus' daughter, Fulvia Plautilla, was married to Severus' son, Caracalla. Plautianus' excessive power came to an end in 204, when he was denounced by the emperor's dying brother. In January 205 Julia Domna and Caracalla accused Plautianus of plotting to kill him and Severus. The powerful prefect was executed while he was trying to defend his case in front of the two emperors. One of the two following praefecti was the famous jurist Papinian. Executions of senators did not stop: Cassius Dio records that many of them were put to death, some after being formally tried. After the assassination of Gaius Fulvius Plautianus in the rest of his reign, he relied more on the advice of his clever and educated wife, Julia Domna, in the administration of the empire. Military reforms Upon his arrival at Rome in 193, Severus discharged the Praetorian Guard, which had murdered Pertinax and had then auctioned the Roman Empire to Didius Julianus. Its members were stripped of their ceremonial armour and forbidden to come within miles of the city on pain of death. Severus replaced the old guard with 10 new cohorts recruited from veterans of his Danubian legions. Around 197 he increased the number of legions from 30 to 33, with the introduction of the three new legions: I, II and III Parthica. He garrisoned Legio II Parthica at Albanum, only from Rome. He gave his soldiers a donative of a thousand sesterces (250 denarii) each, and raised the annual wage for a soldier in the legions from 300 to 400 denarii. Severus was the first Roman emperor to station some of the imperial army in Italy. He realized that Rome needed a military central reserve with the capability to be sent anywhere. Reputed persecution of Christians At the beginning of Severus' reign, Trajan's policy toward the Christians was still in force. That is, Christians were only to be punished if they refused to worship the emperor and the gods, but they were not to be sought out. Therefore, persecution was inconsistent, local and sporadic. Faced with internal dissidence and external threats, Severus felt the need to promote religious harmony by promoting syncretism. He, possibly, issued an edict that punished conversion to Judaism and Christianity. A number of persecutions of Christians occurred in the Roman Empire during his reign and are traditionally attributed to