Constantius I, commonly known as Constantius Chlorus, was Caesar, a form of Roman co-emperor, from 293 to 306. He was the father of Constantine the Great and founder of the Constantinian dynasty. As Caesar, he defeated the usurper Allect...

Constantine, The Great was the 57th Emperor of the Roman Empire from 306, and the sole holder of that office from 324 until his death in 337. Best known for being the first Christian Roman emperor, Constantine reversed the persecutions of h...

Theodosius also called Theodosius I and Theodosius the Great, was Roman Emperor from 379 to 395. Reuniting the eastern and western portions of the empire, Theodosius was the last emperor of both the Eastern and Western Roman Empire. After h...

Alaric I was the first king of the Visigoths, from 395 to 410. He rose to leadership of the Goths who came to occupy Moesia—territory acquired a couple of decades earlier by a combined force of Goths and Alans after the Battle of Adrianople...

Flavius Valerius Leo (401–18 January 474), known in English as Leo the Thracian or Leo I, was a Byzantine Emperor who ruled from 457 to 474. He was known as Magnus Thrax (the "Great Thracian") by his supporters, and Macellus ("the Butcher")...

Attila the Hun was the Emperor of the Huns from 434 until his death in 453. He was leader of the Hunnic Empire which stretched from Germany to the Ural River and from the River Danube to the Baltic Sea. During his rule, he was one of the mo...

Flavius Odoacer, was a soldier, who in 476 became the first King of Italy (476–493). His reign is commonly seen as marking the end of the Western Roman Empire. Though the real power in Italy was in his hands, he represented himself as the c...

Theoderic the Great, often referred to as Theodoric, was king of the Germanic Ostrogoths (475–526), ruler of Italy (493–526), regent of the Visigoths (511–526), and a patricius of the Eastern Roman Empire. His Gothic name translates into "p...

Clovis or Chlodowech was the first King of the Franks to unite all the Frankish tribes under one ruler, changing the leadership from a group of royal chieftains, to rule by kings, ensuring that the kingship was held by his heirs. He was als...

Justinian I, commonly known as Justinian the Great, was East Roman (Byzantine) Emperor from 527 to 565. During his reign, Justinian sought to revive the empire's greatness and reconquer the lost western half of the classical Roman Empire. O...

Theuderic I was the Merovingian king of Metz, Rheims, or Austrasia — as it is variously called—from 511 to 533 or 534. He was the son of Clovis I and one of his earlier wives or concubines. He inherited Metz in 511 at his father's death. In...

Cassiodorus was a Roman statesman, great writer and (later) monk, serving in the administration of Theodoric the Great, king of the Ostrogoths. He spent his career trying to bridge the cultural divides that were fragmenting the 6th century,...

King Arthur was a legendary British leader of the late fifth and early sixth centuries, who, according to Medieval histories and romances, led the defence of Britain against Saxon invaders in the early sixth century. The details of Arthur's...

Emperor Wen of Sui (581-604), personal name Yang Jian, was the founder and first emperor of China's Sui Dynasty. He was a hard-working administrator and a micromanager. As a Buddhist, he encouraged the spread of Buddhism through the state;...

Sophronius was the Patriarch of Jerusalem from 634 until his death, and is venerated as a saint in the Catholic Church and the Eastern Orthodox Church. Before rising to the primacy of the see of Jerusalem, he was a monk and theologian who...