 Ronald Syme states that he is "probably" the Statilius Severus, a military tribune assigned to an unknown legion, to whom Trajan addressed a rescript concerning a soldier's testament.The other appointment Hadrianus is known to have received was governor of Thracia; he is mentioned as the governor succeeding Publius Juventius Celsus on a military diploma dated 19 July 114.Werner Eck dates the tenure of Hadrianus in Thracia from the year 112 to 115, admitting to the possibility that Hadrianus may have been consul "in absentia".