Byzantine Emperor. He was made joint Emperor by his father, Constantine IV, in AD 681, succeeding as sole ruler in AD 685 at the age of sixteen. Thanks to his father's campaigns he inherited a stable empire and he was soon able to re-establish Byzantine rule over parts of Cyprus and secure increased tribute from the Umayyad Caliphate after his successful attack on Armenia. Between AD 688 and AD 689 he fought a campaign against the Slavic tribes in the Balkans, forcing them to resettle in Anatolia and recruiting thirty thousand of them into his own army. He employed these new forces in a new war against the Arabs, but they were soon bribed to rebel by the Arabs, leading to the fall of Armenia in AD 694. He fell from favour with the church because of his persecution of the Manichaeans and suppression of non orthodox traditions. After the Quinisext Council, which he called at Constantinople in AD 692, failed to bring about agreement he ordered the arrest of Pope Sergius I, provoking a rebellion from the militias of Rome and Ravenna. He also became increasingly unpopular with his own people, his policy of protecting peasant land made him unpopular with the aristocracy and his use of taxes to fund grand building projects alienated the commoners. In AD 695, a rebellion broke out led by Leontios, the Strategus of Hellas, who was proclaimed Emperor. Justinian was deposed and his nose cut off, earning him the nick-name "Rhinotmetus", or "the Slit-nosed" and he was exiled to Cherson in the Crimea. After surviving an assassination attempt ordered by Tiberios, who had usurped the throne from Leontios, he led his supporters to Constantinople, which he conquered by entering through an unused drain. He reclaimed his throne in AD 705 and had both Leontius and Tiberios executed. In his second reign he fought an unsuccessful war against both Bulgaria and the Caliphate and attempted to prevent another uprising by ruthlessly suppressing all opposition at home. The combination of his tyrannical regime and the loss of Byzantine territory abroad provoked another uprising, this time led by the General Bardanes. Justinian was arrested on his return to Constantinople from Armenia and executed outside the city walls in AD 711 and Bardenes was proclaimed Emperor.