Justin II, with Sophia. 565-578. Æ Follis, Large M, Byzantine Empire. NGC Ch F.Justin II (Latin: Iustinus; Greek: Ἰουστῖνος, translit. Ioustînos; died 5 October 578) or Justin the Younger (Latin: Iustinus minor) was Eastern Roman Emperor from 565 until 578. He was the nephew of Justinian I and the husband of Sophia, the niece of the Empress Theodora, and was therefore a member of the Justinian dynasty.He was a son of Vigilantia and Dulcidio (sometimes rendered as Dulcissimus),[3] respectively the sister and brother-in-law of Justinian. His siblings included Marcellus and Praejecta. With Sophia he had a daughter Arabia and possibly a son, Justus, who died young. He also had a niece named Helena.Gepids, from whom Justin had obtained the Danube fortress of Sirmium, Avar pressure caused the Lombards to migrate West, and in 568 they invaded Italy under their king Alboin. They quickly overran the Po valley, and within a few years they had made themselves masters of nearly the entire country. The Avars themselves crossed the Danube in 573 or 574, when the Empire's attention was distracted by troubles on the Persian frontier. They were only placated by the payment of a subsidy of 60,000 silver pieces by Justin's successor Tiberius.[11]
The North and East frontiers were the main focus of Justin's attention. In 572 his refusal to pay tribute to the Persians in combination with overtures to the Turks led to a war with the Sassanid Empire. After two disastrous campaigns, in which the Persians under Khosrow I overran Syria and captured the strategically important fortress of Dara, Justin lost his mind.
Shortly after the smuggling of silkworm eggs into the Byzantine Empire from China by Nestorian Christian monks, the 6th-century Byzantine historian Menander Protector writes of how the Sogdians attempted to establish a direct trade of Chinese silk with the Byzantine Empire. After forming an alliance with the Sassanid ruler Khosrow I to defeat the Hephthalite Empire, Istämi, the Göktürk ruler of the Western Turkic Khaganate, was approached by Sogdian merchants requesting permission to seek an audience with the Sassanid king of kings for the privilege of traveling through Persian territories in order to trade with the Byzantines.[13] Istämi refused the first request, but when he sanctioned the second one and had the Sogdian embassy sent to the Sassanid king, the latter had the members of the embassy poisoned to death.[13] Maniah, a Sogdian diplomat, convinced Istämi to send an embassy directly to Constantinople, which arrived in 568 and offered not only silk as a gift to Justin, but also proposed an alliance against Sassanid Persia. Justin agreed and sent an embassy to the Turkic Khaganate, ensuring the direct silk trade desired by the Sogdians.After 572, Justin was reported to have fits of insanity. John of Ephesus, whose Monophysite sect suffered persecutions under Justin, offered a vivid description of Justin's madness, in which he behaved like a wild animal, was wheeled about on a mobile throne and required organ music to be played day and night.[16] In 574, at Sophia's suggestion, he adopted the general Tiberius as his son and heir, and then retired in his favor.[17] On 7 December, according to Theophylact Simocatta, Justin remained sufficiently clear-minded to make an eloquent speech as he passed the crown:[18][19]
You behold the ensigns of supreme power. You are about to receive them, not from my hand, but from the hand of God. Honor them, and from them you will derive honor. Respect the empress your mother: you are now her son; before, you were her servant. Delight not in blood; abstain from revenge; avoid those actions by which I have incurred the public hatred; and consult the experience, rather than the example, of your predecessor. As a man, I have sinned; as a sinner, even in this life, I have been severely punished: but these servants (and he pointed to his ministers), who have abused my confidence, and inflamed my passions, will appear with me before the tribunal of Christ. I have been dazzled by the splendor of the diadem: be thou wise and modest; remember what you have been, remember what you are. You see around us your slaves, and your children: with the authority, assume the tenderness, of a parent. Love your people like yourself; cultivate the affections, maintain the discipline, of the army; protect the fortunes of the rich, relieve the necessities of the poor.
Four years later, on 26 September 578, he elevated Tiberius as Augustus. Justin died only nine days later, on 5 October 578.