The churches of Lazica (Georgia) and Armenia split. While the Armenian Church remains independent, the Georgian church unites with the Byzantine Empire. This ecclesiastical union deepens political and cultural contact between the two states. As a sign of Lazica's status vis-à-vis Byzantium, Lazic princes are vested with honorific titles of the Byzantine court, including kouropalates, or "minister of the imperial palace" (approximate date).
Gothic War: Narses arrives in Venetia and discovers that a powerful Gothic-Frank army (50,000 men), under joint command of the kings Totila and Theudebald, has blocked the principal route to the Po Valley. Not wishing to engage such a formidable force and confident that the Franks would avoid a direct confrontation, Narses skirts the lagoons along the Adriatic shore, by using vessels to leapfrog his army from point to point along the coast. In this way he arrives at the capital Ravenna without encountering any opposition. He attacks and crushes a small Gothic force at Ariminum (modern Rimini).
Autumn – Xiao Dong, great-nephew of the rebellious general Hou Jing, succeeds Jianwen Di as emperor of the Liang Dynasty. Xiao Dong has no real power and Hou Jing controls the imperial government at the capital Jiankang.
July 1 – Battle of Taginae: Narses crosses the Apennines with a Byzantine army (25,000 men). He is blocked by a Gothic force under king Totila near Taginae (Central Italy). In a narrow mountain valley, Narses deploys his army in a "crescent shaped" formation.[8] He dismounts his Lombard and Heruli cavalry mercenaries, placing them as a phalanx in the centre. On his left flank he sends out a mixed force of foot and horse archers to seize a dominant height. The Goths open the battle with a determined cavalry charge. Halted by enfilading fire from both sides, the attackers are thrown back in confusion on the infantry behind them. The Byzantine cataphracts (Clibanarii) sweep into the milling mass. More than 6,000 Goths, including Totila, are killed. The remnants flee, and Narses proceeds to Rome, where he captures the city after a brief siege.
Emperor Justinian I dispatches a small Byzantine force (2,000 men) under Liberius to Hispania, according to the historian Jordanes. He conquers Cartagena and other cities on the southeastern coast.[9]
The Ostrogothic Kingdom ends after 60 years of rule in Italy. The Goths are allowed to return to their homes in peace and (re)settle in modern-day Austria. Some 7,000 people retreat to Campsas (Southern Gaul), and resist with minimal help from the Franks against the Byzantines until 554.
Gothic War: Frankish invasion — Two Frankish-Alemanni dukes, brothers Lothair and Buccelin, cross the Alps from Germany with a force of 75,000 men, mostly Frankish infantry. In the Po Valley, they win an easy victory over a much smaller Byzantine force at Parma, and are joined by remnants of the Gothic armies, bringing the total strength of the invaders to about 90,000 men. Narses, gathering his forces as quickly as possible, marches north to harass the Franks, but is not strong enough to engage them in battle. In Samnium (Southern Italy) the brothers divide their forces: Lothaire goes down the east coast, then returns to the north, to winter in the Po Valley. Buccelin follows the west coast into Calabria, where he spends the winter — his army being seriously wasted by attrition and disease.
King Seong of Baekje attacks the kingdoms of Goguryeo and Silla. However, under a secret agreement, Silla troops attack the exhausted Baekje army, and take possession of the entire Han River valley.
October – Battle of the Volturnus: In the spring Butilinus (Buccelin) has marched north; the Frankish army (infected by an epidemic of dysentery which kills their leader Leutharis (Lothair)) is reduced to about 30,000 men. The Byzantine army, with 18,000 men (including a contingent of Goths under Aligern), marches south to meet them at Casilinum (on the banks of the River Volturno). Byzantine eunuch general Narses sends a cavalry force under Chanaranges to destroy the supply wagons of the Franks. Outmanoeuvring Butilinus, he chooses a disposition similar to that at Taginae. After a frontal assault on the Byzantine centre, the Franks and the Alamanni are annihilated, thus effectively ending the Gothic War (535–554). Narses garrisons an army of 16,000 men in Italy. The recovery of the Italian Peninsula has cost the empire about 300,000 pounds of gold.[13]
Byzantine forces under Liberius seize Granada (Andalusia) and occupy the old province of Baetica. Justinian I calls Belisarius out of retirement, to complete the consolidation of reconquered regions of Southern Spain.
Siege and Fall of Jiangling: The Western Wei forces launched a military campaign against the Liang dynasty, targeting Jiangling, the Liang capital.
After a protracted siege, Jiangling fell to the Western Wei army.
Emperor Yuan of Liang (Xiao Yi) was captured during this assault and was subsequently executed.
Mass Enslavement and Destruction: Following the capture of Jiangling, the city faced extensive looting and destruction. Historical records indicate that a large portion of the population was either killed or enslaved. The fall of Jiangling significantly weakened the Liang dynasty, leading to further internal strife and fragmentation. Power vacuums emerged, causing shifts in control among the remaining regional powers.
King Gubazes II is invited to observe the siege of a Persian-held fortress, and is murdered by the Byzantine military staff after accusing them of incompetence.[19]
The Avars arrive in the northern region of the Caucasus, between the Black Sea and the Caspian Sea. They send envoys to the Byzantines in Lazica (modern Georgia). Like the Huns, the Avars are the former elite of a central Asian federation, which has been forced to flee westwards.[23]
Ming Di is made emperor, after his younger brother Xiao Min Di is arrested while trying to assume power. Xiao Min Di is deposed and executed by Yuwen Hu.
Battle of Melantias: Outside the city walls of Constantinople, Belisarius defeats the combined "barbarians" with his veteran cavalry (bucellarii), and a few thousand hastily raised levies.
First successful human flight: a kite carrying Yuan Huangtou lands in the proximity of Ye, China. Emperor Wen Xuan Di sponsors the flight; Yuan is taken prisoner; other imprisoned kite flyers also fly, but those die and Yuan survives. Yuan is executed afterwards.[25]
Wen Di, age 37, succeeds his uncle Chen Wu Di as emperor of the Chen dynasty. During his reign, he consolidates the state against the rebellious warlords.
^Isidore of Seville, Historia de regibus Gothorum, Vandalorum et Suevorum, chapter 46. Translation by Guido Donini and Gordon B. Ford, Isidore of Seville's History of the Goths, Vandals, and Suevi, second revised edition (Leiden: E.J. Brill, 1970), p. 22
^Rome at War (AD 293–696), p. 59. Michael Whitby, 2002. ISBN1-84176-359-4
^Michael Whitby (2002-11-13). Rome at War AD 293-696. Osprey Publishing Company. p. 59. ISBN978-1-84176-359-0.
^（永定三年）使元黄头与诸囚自金凤台各乘纸鸱以飞，黄头独能至紫陌乃堕，仍付御史中丞毕义云饿杀之。 (Rendering: [In the 3rd year of Yongding, 559], Gao Yang conducted an experiment by having Yuan Huangtou and a few prisoners launch themselves from a tower in Ye, capital of the Northern Qi. Yuan Huangtou was the only one who survived from this flight, as he glided over the city-wall and fell at Zimo [western segment of Ye] safely, but he was later executed.) Zizhi Tongjian 167.