When Plautianus was accused of treachery against the imperial family, Septimius Severus summoned him to the palace. During the meeting on 22 January 205, Caracalla's men killed him.
When Plautianus was accused of treason against the imperial family, Septimius Severus summoned him to the palace for a meeting on January 22nd, 205.  Caracalla's men killed him during this meeting.