Maximus Caesar of the Roman Empire from 236 to 238.
Gaius Julius Verus Maximus was the son of the Roman Emperor Maximinus Thrax and his wife, Caecilia Paulina.

Maximinus appointed his son Maximus caesar around 236, but he held little real power. Both were murdered by the Praetorian Guard in May 238, during the Siege of Aquileia in the Year of the Six Emperors.

In contrast to almost all other 3rd century rulers, Maximus is more common in bronze than in silver. Neither metal is particularly common, however.
Maximus
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An AE Sestertius struck 236 AD in Rome
Obverse: draped bust right from behind; C IVL VERVS MAXIMVS CAES

Reverse: Maximus standing left, holding baton and spear, two legionary standards behind; PRINCIPI IVVENTVTIS / S__C

Diameter: -
Die Orientation: -
Weight: 24.35 g
2nd emission ex CNG
RIC 9, Cohen 12, BMC 123