Severus II - Augustus of Imperium Romanum from 306 to 307
Flavius Valerius Severus Augustus was a Western Roman Emperor from 306 to 307.

Severus was of humble birth, born in Northern Illyria around the middle of the third century AD. He rose to become a senior officer in the Roman army, and as an old friend of Galerius, that emperor ordered that Severus be appointed Caesar of the Western Roman Empire.

On the death of Constantius I in Britain in the summer of 306, Severus was promoted to Augustus by Galerius, in opposition to the acclamation of Constantine I (Constantius' son) by his own soldiers.

He fell victim to the many schemes and political maneuvers of the Tetrarchy, and after failing to besiege Rome, he fled to Ravenna. It is thought that he was killed there or executed near Rome.
Severus II
Emperor Severus II of the Roman Empire

(1) Severus II 305 AD
Obverse: FL VAL SEVERVS NOB CAES, Laureate bust right
Reverse: GENIO POPVLI ROMANI, Genius standing left holding patera and cornucopia
Ref: RIC 71a
(2) Severus II 305-306 AD
Obverse: laureate head right; SEVERVS NOB C
Reverse: Genius standing left, wearing chalmys and modius, holding cornucopia, pouring libations from patera; GENIO POP_VLI ROMANI / SIS
Ref: RIC VI Siscia 171a
(3) Severus II AD 306-307
Obverse: IMP C SEVERVS P F AVG, radiate, draped and cuirassed bust right
Reverse: CONCORDIA MILITVM, Severus standing right, holding short sceptre and receiving Victory on globe from Jupiter standing left, holding sceptre; Δ in central field, ALE in exergue
Ref: RIC 84; Sear 14682
(4) Severus II 305-306 AD
AE Quarter-Follis Siscia
Obverse: FL VAL SEVERVS NOB C, Head of Severus facing right, wearing laurel wreath
Reverse: GENIO POPVLI ROMANI, Genius standing facing left, nude except for chlamys over left shoulder, holding cornucopia and patera; SIS in exergue
Ref: RIC VI Siscia 170a