This Julio-Claudian portrait bears resemblance to sculptures of Lucius Caesar (20 B.C.-4 A.D.) and Gaius Caesar (17 B.C.-2 A.D.), the sons of Agrippa, who were adopted in 17 B.C. by Augustus. They were intended as Augustus' successors, but Lucius died at Marseilles on his way to a military campaign in Spain, while Gaius died in Lycia.
This portrait recalls features of their adoptive father Augustus, specifically the brushed forward hair that diverges near the center of the forehead, as well as the strong bone structure of the angular face and the intense emotional presence. While images of Augustus always have strongly idealized features, this current example has a naturalism that distinguishes it from its inspiration.