30 Nummi - Tiberius II Constantine Nicomedia

Tiberius II Constantine came to power as caesar under Justin II after the latter's mental collapse — Justin suffered what contemporaries described as fits of madness, reportedly biting attendants and requiring physical restraint. Tiberius effectively governed the empire from 574 before his formal elevation as augustus. The Nicomedia mint, operating across the Bosphorus from Constantinople, was one of several provincial facilities reactivated to meet the military coinage demands of a state simultaneously fighting Persia in the east and haemorrhaging territory to the Lombards in Italy.