Tiberius II Constantine was a Byzantine emperor who reigned from 578 until his death in 582. Born in Thrace, he rose through the imperial ranks as a friend and protégé of Justin II, eventually being adopted by the emperor and named caesar. Following the death of Justin II, Tiberius became the sole ruler, adopting the regnal name Constantine. His brief reign was characterized by significant military challenges, including conflicts with the Sassanid Persians and incursions by the Avars, as well as efforts to manage the empire's finances and religious tensions.