His talents soon attracted attention, and he was promoted to official
duties in the service of the State. He was commissioned to accompany
the famous Belisarius during his command of the army in the East, in
the capacity of Counsellor or Assessor: it is not easy to define
exactly the meaning of the Greek term, and the functions it embraced.
The term "Judge-Advocate" has been suggested[1], a legal adviser who
had a measure of judicial as well as administrative power. From his
vivid description of the early years of Justinian's reign, we may
conclude that he spent some considerable time at the Byzantine court
before setting out for the East, at any rate, until the year 532, when
Belisarius returned to the capital: he would thus have been an
eye-witness of the "Nika" sedition, which, had it not been for the
courage and firmness displayed by Theodora, would probably have
resulted in the flight of Justinian, and a change of dynasty.

In 533 he accompanied Belisarius on his expedition to Africa. On the
way, he was intrusted with an important mission to Sicily. He appears
to have returned to Byzantium with Belisarius in 535. He is heard of
again, in 536, as charged with another mission in the neighbourhood of
Rome, which shows that, at the end of 535, he had accompanied
Belisarius, who had been despatched to Italy and Sicily to conquer the
territory in the occupation of the Goths. This expedition terminated
successfully by the surrender of Vitiges and his captivity at
Byzantium in 540.

As the reward of his services, Justinian bestowed upon him the title
of "Illustrious" (_Illustris_), given to the highest class of public
officials, raised him to the rank of a Senator, and, finally,
appointed him Praefect of Byzantium in 562. He does not, however, seem
to have been altogether satisfied: he complains of having been