Saloninus Caesar of the Roman Empire from 258 to 260.
Publius Licinius Cornelius Saloninus Valerianus was Roman Emperor in 260.

Following his brother Valerian II's death in 258, Saloninus was appointed Caesar by his father and sent to Gaul to make sure his father's authority was respected there.

Unfortunately, this endeavour failed spectacularly and the general Postumus was declared emperor by his troops as the first so-called Gallic Emperor.

Gallienus, who was fully engaged elsewhere, could do nothing to save his son. Saloninus was handed over to the enemy by the citizens of Colonia Agrippina and murdered.

Saloninus was also briefly declared Augustus by his troops in 260, shortly before his demise.
Saloninus
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An BL Tetradrachm struck 259-260 AD in Alexandria
Obverse: draped and cuirassed bust right; ΠO ΛIK KOP CA VAΛEPIANOC K CEB

Reverse: eagle standing left, head right, wreath in beak; L_Z

Diameter: -
Die Orientation: -
Weight: 11.3 g
29 Aug 259 - 28 Aug 260 AD
Emmett 3776, Geissen 3005, Kampmann/Ganschow 93.8; Dattari (Savio) 5377; Ex Rauch 94 (2014), 595.
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An AR Antoninianus struck an unknown year in Lyons
Obverse: SAL VALERIANVS CAES, radiate, draped bust right

Reverse: PRINC IVVENT, prince standing left holding baton and transverse spear, one standard to right

Diameter: 23 mm
Die Orientation: -
Weight: 1.7 g
No notes for this coin
RIC VI 10, Cohen 61 , Sear 10770
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An AR Antoninianus struck 258-260 AD in Antioch | Samosata
Obverse: SALON VALERIANVS NOB CAES. Radiate, draped and cuirassed bust right.

Reverse: SPES PVBLICA. Spes standing left, holding hem of skirt and presenting flower to prince, standing right in military attire, holding spear.

Diameter: -
Die Orientation: -
Weight: -
No notes for this coin
RIC 36
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An BL Antoninianus struck 255-259 AD in Antioch
Obverse: P COR SAL VALERIANVS CAES / radiate, draped bust right

Reverse: DII NVTRITORES / Jupiter standing left, presenting Victory to Saloninus

Diameter: -
Die Orientation: -
Weight: -
No notes for this coin
RIC 35A Antioch