Valerian II Caesar of the Roman Empire from 253 to 257.
Publius Licinius Cornelius Valerianus was the eldest son of Roman Emperor Gallienus and Empress Cornelia Salonina.

Shortly after his acclamation as Emperor, Valerian I made Gallienus his co-Emperor and his grandson, Valerian II, Caesar. He was placed in the care of one Ingenuus, who seems to have held an extraordinary command as governor of the Illyrian provinces.

In 257, Valerian II died under circumstances sufficiently suspicious for Gallienus to attempt to demote Ingenuus. It was this action that sparked the attempted usurpation of the Empire by Ingenuus, who had widespread support among the Illyrian garrisons and the provincial establishment.
Valerian II
/Files/Images/Coinsite/CoinDB/825_Valerian_II_altar.JPG
An BL Antoninianus struck 258 AD in Rome
Obverse: radiate head right; DIVO CAES VALERIANO

Reverse: altar with flame above, divided in four squares with a dot inside of each square; CONSECRATIO

Diameter: -
Die Orientation: -
Weight: 2.1 g
5th emission
RIC V 24; MIR 36, 261g; RSC 12
/Files/Images/Coinsite/CoinDB/Valerian_II_Princ_Ivventvtis.jpg
An AR Antoninianus struck 255-256 AD in Samosata
Obverse: radiate, draped and cuirassed bust right from behind; VALERIANVS NOBIL CAES

Reverse: Valerian II standing half right with head left, crowning trophy to the left with wreath holding shield and spear; PRINC IVVENT_VTIS

Diameter: -
Die Orientation: -
Weight: 3.98 g
Samosata 1st emission, 255-256 AD
Göbl MIR 1694b, RIC V 49, RSC IV 67, SRCV III 10735