Tiberius II Constantine

Tiberius II Constantine (Latin: Tiberius Cōnstantīnus; Ancient Greek: Τιβέριος Κωνσταντῖνος, romanized: Tibérios Kōnstantĩnos; died 14 August 582) was Eastern Roman emperor from 574 to 582. Tiberius rose to power in 574 when Justin II, prior to a mental breakdown, proclaimed him caesar and adopted him as his own son. In 578, the dying Justin II gave him the title of augustus, thus becoming co-emperor alongside him. Tiberius became sole ruler less than two weeks later, assuming the regnal name of "Constantine" under which he reigned until his death.