As with Caligula , Germanicus is mostly referred to by his agnomen .
At birth , Germanicus had been known as either Nero Claudius Drusus after his father or Tiberius Claudius Nero after his uncle .
As with Caligula , Germanicus is mostly referred to by Germanicus ' agnomen .
At birth , Germanicus had been known as either Nero Claudius Drusus after his father or Tiberius Claudius Nero after his uncle .