From Dalmatia, is first recorded as centurion in legion II Adiutrix and rose through the primipilate, becoming tribune in the vigiles and urban cohorts at Rome, and commander of the imperial horse guard, then procurator of Ludus Magnus (see ludi) and prefect of the fleet based at Misenum under Trajan, the latter post taking him to the Parthian War, by which time he was already one of Hadrian's friends. In ad 116 he was given the first of several special missions, to suppress the Jewish revolts in Egypt and Cyrenaica (see jews); soon after Hadrian's accession the next year he was sent to deal with an uprising in Mauretania. Next he had a special command in Pannonia (Lower) and Dacia, with a rank equivalent to prefect of Egypt. In 119 he became praetorian prefect and held this post for many years, although ultimately incurring Hadrian's dislike.
Subjects: Classical Studies.