The earliest historical mention of Livianus is in the epigrams of
Martial. The subject of one epigram from book IX, whose publication is dated to the year 94, is the beauty of twin boys, Hierus and Asillus; Surviving inscription inform us that they were his slaves. Otherwise, the earliest mention is when Trajan appointed Livinianus praetorian prefect in 101, to aid in the prosecution of the Dacian War; the following year Livianus and
Lucius Licinius Sura were entrusted on a mission to negotiate peace with the Dacian king,
Decebalus, "but nothing was accomplished, since Decebalus did not dare to meet them." There are intermittent glimpses of Livianus after the conclusion of the Dacian Wars. A fragment of a bronze tablet dated January 108 contains Livianus' name. He is surmised as one of Hadrian's close companions about the time of
Trajan's Parthian campaign, although he may have been replaced as praetorian prefect by
Servius Sulpicius Similis before that time. A clay yard stamp known as an
opus figlinae has been recovered bearing his name and the consuls for the year 123. It is unknown how much later than that stamp Livianus lived. His tombstone, wherein he is described as
amico optimo ("best of friends"), has been recovered at Rome; this language suggests he died without children. == Familia and properties ==