Siliqua - Procopius

Procopius seized power in Constantinople in September 365, exploiting Julian's bloodline connection — his mother was a cousin of Julian the Apostate — to challenge Valentinian I and Valens. His usurpation lasted barely eight months. Valens, initially so alarmed he considered abdication, ultimately crushed Procopius at Nacoleia in Phrygia in May 366, after two of Procopius's own generals defected mid-battle.

RIC IX 13e is among the rarer products of his short mint operation at Constantinople. Procopius was captured immediately after the battle and executed the same day.