Charlemagne, was crowned Imperator Romanorum (the first time Imperator was used as an actual regnal title) by Pope Leo III in Christmas AD 800, thus...

Imperator totius Hispaniae is a Latin title meaning "Emperor of All Spain". In Spain in the Middle Ages, the title "emperor" (from Latin imperator) was...

ALAMANNICUS INCLICTUS SARMATICUS INCLITUS TRIBUNICIAE POTESTATIS VICIES SEPTIES IMPERATOR VICIES SEPTIES). Martindale 1980, p. 323. Ralph W. Mathisen (1996) "Galla...

Alexander III (Russian: Александр III Александрович Романов, romanized: Aleksandr III Aleksandrovich Romanov; 10 March 1845 – 1 November 1894) was Emperor...

emperor Leo I (r. 457–474). Leo II was made co-emperor with his grandfather Leo I on 17 November 473, and became sole emperor on 18 January 474 after Leo I...

could not rule the empire, Pope Leo III declared the throne vacant and crowned Charlemagne Emperor of the Romans (Imperator Romanorum), the successor of...

Leo I (Greek: Λέων, translit. Leōn; c. 401 – 18 January 474), also known as "the Thracian" (Latin: Thrax; Greek: ο Θραξ), was Eastern Roman emperor from...

September 866 to the empress Eudokia Ingerina, Leo was either the illegitimate son of Emperor Michael III or the second son of Michael's successor, Basil...

del Borgo. The painting shows how Charlemagne was crowned Imperator Romanorum by Pope Leo III (pontiff from 795 to 816) on Christmas Evening, 800. Behind...

adoption but ruled as "Imperator Caesar Titus Aelius Hadrianus Antoninus Augustus Pius". The imperial formula thus became "Imperator Caesar [name] Augustus"...