In 26 , against better judgement , Tiberius exiled himself from Rome and left administration largely in the hands of his unscrupulous Praetorian Prefects Lucius Aelius Sejanus and Quintus Naevius Sutorius Macro .
In 26 , Tiberius moved from Rome to the Isle of Capri , and left administration largely in the hands of his unscrupulous Praetorian Prefect Sejanus .