Arius was an ascetic Christian presbyter of Libyan origins, and priest in Alexandria, Egypt, of the church of Baucalis. His teachings about the nature of the Godhead, which emphasized the Father's divinity over the Son, and his opposition t...

Saint Nicholas of Myra (traditionally 15 March 270 – 6 December 343), also known as Nicholas of Bari, was an early Christian bishop of Greek descent from the maritime city of Myra in Asia Minor (modern-day Demre, Turkey) during the time of...

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...

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...

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...

Basil I, called the Macedonian was a Byzantine Emperor who reigned from 867 to 886. Born a simple peasant in the theme of Macedonia, he rose in the Imperial court. He entered into the service of Theophilitzes, a relative of Emperor Michael...

Basil II Porphyrogenitus, nicknamed the Bulgar Slayer, was senior Byzantine Emperor for almost 50 years (10 January 976 – 15 December 1025), having been a junior colleague to other emperors since 960. He and his brother Constantine were nam...

Urban is best known for starting the First Crusade. Urban's crusading movement took its first public shape at the Council of Piacenza, where in March 1095 Urban received an ambassador from the Byzantine emperor Alexius I Comnenus, asking fo...

Godfrey of Bouillon was a leader of the First Crusade. He was either the eldest or the second son of Eustace II, Count of Boulogne, and Ida, daughter of Godfrey III, Duke of Lower Lorraine. He was designated by his uncle, Godfrey the Hunchb...

Enrico Dandolo was the 41st Doge of Venice from 1195 until his death. Remembered for his blindness, piety, longevity, and shrewdness, he is infamous for his role in the Fourth Crusade which he, at age ninety, directed against the Byzantine...

Osman I was the leader of the Ottoman Turks and the founder of the dynasty that established and ruled the Ottoman Empire. The state, while only a small principality (beylik) during Osman's lifetime, was named after him and would prevail as...

Constantine XI Dragaš Palaiologos, was the last reigning Byzantine Emperor, reigning as a member of the Palaiologos dynasty from 1449 to his death in battle at the fall of Constantinople. Following his death, he became a legendary figure in...

Mehmed II (1432-1481), nicknamed the conqueror, was the sultan of the Ottoman Empire a short time in 1444 to 1446, and from 1451 to 1481. Mehmed II brought an end to the Byzantine Empire by capturing Constantinople in 1453 (during the well-...