A detail from the Arch of Constantine I in Rome. Dedicated in 315 CE, the triumphal arch celebrates the emperor's victory over the Roman tyrant Maxentius in 312 CE. The two medallion panels were taken from a now lost monument (130-138 CE) in honour of Hadrian and each is 236 cm in diameter. On the left is a successful lion hunt whilst the right depicts a sacrificial ceremony in honour of Hercules. Below is a 1 m high marble frieze showing a gift-giving ceremony (largito) from c.315 CE. (North façade, right side).