The Arch of Tiberius (Arcus Tiberii) was erected to celebrate the recovery of the Roman standards that had been lost to Germanic tribes by Varus in 9 CE. The standards were recovered by Germanicus in 15 or 16 CE.
The Arch of Tiberius is dedicated to Tiberius because in the imperial period only the emperor could celebrate a triumph, so the victory of Germanicus was celebrated with a triumph of Tiberius.
Little is known about this monument. It is mentioned in literary sources, and it is known from a relief on the Arch of Constantine. It appears to have been a single arch, like the later Arch of Titus, flanked by two columns of the Corinthian order.
The foundations of the arch have been found on the Forum Romanum, but nothing is visible.
- LacusCurtius: Platner: A Topographical Dictionary of Ancient Rome
- LacusCurtius: Hülsen: Il Foro Romano – Storia e Monumenti