Gaius Vibius Marsus, suffect consul ce17, was a legate (see legati) of *Germanicus in the east and after his death in 19 conducted *Vipsania Agrippina (2) back to Rome; his daughter married into the Plautii. From 26/27 to 29/30 he was proconsul (see pro consule) of Africa. In 37, accused of treason and adultery, he was saved by the death of *Tiberius. *Claudius returned him to *Syria as governor (c.42–5). There he was hostile to M. *Iulius Agrippa(1) and checked the designs on *Armenia of Vardanes, king of *Parthia.
