The 530s decade ran from January 1, 530, to December 31, 539.
The 540s decade ran from January 1, 540, to December 31, 549.
The 550s decade ran from January 1, 550, to December 31, 559.
The 560s decade ran from January 1, 560, to December 31, 569.
Year 532 (DXXXII) was a leap year starting on Thursday of the Julian calendar. At the time, it was known as the Second year after the Consulship of Lampadius and Probus. The denomination 532 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Year 537 (DXXXVII) was a common year starting on Thursday of the Julian calendar. At the time, it was known as the Second year after the Consulship of Belisarius. The denomination 537 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Year 550 (DL) was a common year starting on Saturday of the Julian calendar. The denomination 550 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Year 530 (DXXX) was a common year starting on Tuesday of the Julian calendar. In the Roman Empire, it was known as the Year of the Consulship of Lampadius and Probus. The denomination 530 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Year 544 (DXLIV) was a leap year starting on Friday of the Julian calendar. The denomination 544 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Year 548 (DXLVIII) was a leap year starting on Wednesday of the Julian calendar. The denomination 548 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Year 549 (DXLIX) was a common year starting on Friday of the Julian calendar. The denomination 549 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Year 555 (DLV) was a common year starting on Friday of the Julian calendar. The denomination 555 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Year 556 (DLVI) was a leap year starting on Saturday of the Julian calendar. The denomination 556 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Year 565 (DLXV) was a common year starting on Thursday of the Julian calendar. The denomination 565 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
The Lazic War, also known as the Colchidian War or in Georgian historiography as the Great War of Egrisi was fought between the Byzantine Empire and the Sasanian Empire for control of the ancient Georgian region of Lazica. The Lazic War lasted for twenty years, from 541 to 562, with varying success and ended in a victory for the Persians, who obtained an annual tribute in exchange for ending the war. The Lazic War is narrated in detail in the works of Procopius of Caesarea and Agathias.
Peter the Patrician was a senior Byzantine official, diplomat, and historian. A well-educated and successful lawyer, he was repeatedly sent as envoy to Ostrogothic Italy in the prelude to the Gothic War of 535–554. Despite his diplomatic skill, he was not able to avert war, and was imprisoned by the Goths in Ravenna for a few years. Upon his release, he was appointed to the post of magister officiorum, head of the imperial secretariat, which he held for an unparalleled 26 years. In this capacity, he was one of the leading ministers of Emperor Justinian I, playing an important role in the Byzantine emperor's religious policies and the relations with Sassanid Persia; most notably he led the negotiations for the peace agreement of 562 that ended the 20-year-long Lazic War. His historical writings survive only in fragments, but provide unique source material on early Byzantine ceremonies and diplomatic issues between Byzantium and the Sassanids.
Flavius Mar. Petrus Theodorus Valentinus Rusticius Boraides Germanus Iustinus, simply and commonly known as Justin, was an East Roman (Byzantine) aristocrat and general. A member of the Justinian Dynasty and nephew of Emperor Justinian I, he was appointed as one of the last Roman consuls in 540, before going on to assume senior military commands in the Balkans and in Lazica. He fought against the Slavs, the Sassanid Persians and supervised the Byzantine Empire's first contacts with the Avars. At the time of Justinian's death, he was seen as a probable successor, but was beaten to the throne by his cousin, Justin II, who exiled him to Egypt, where he was murdered.
Gubazes II was king of Lazica from circa 541 until his assassination in 555. He was one of the central personalities of the Lazic War (541–562). He originally ascended the throne as a vassal of the Byzantine Empire, but the heavy-handed actions of the Byzantine authorities led him to seek the assistance of Byzantium's main rival, Sassanid Persia. The Byzantines were evicted from Lazica with the aid of a Persian army in 541, but the Persian occupation of the country turned out to be worse, and by 548, Gubazes was requesting assistance from Byzantium. Gubazes remained a Byzantine ally during the next few years, as the two empires fought for control of Lazica, with the fortress of Petra as the focal point of the struggle. Gubazes eventually quarrelled with the Byzantine generals over the fruitless continuation of the war, and was assassinated by them.
Tzath II was King of Lazica as a Byzantine client from 556 to an unknown date.
The Treaty of Dara, also known as the Fifty-Year Peace, was a peace treaty concluded between the Byzantine and Sassanid (Persian) empires at the frontier town of Dara in what is now southern Turkey in 562. The treaty, negotiated by Peter the Patrician for the Byzantine emperor Justinian I and Izadgushasp for the Sassanid king Khosrau I ended the 20-year-long war over the Caucasian kingdom of Lazica. The treaty contained 13 articles, and is well-recorded. It covered all parts of the two empires, Persarmenia, Lazica, the client states, and the Arab allies.
