840 in history

Born in 840

Jan 19 Michael III Byzantine Emperor from 842 to 867. Michael III was the third and traditionally last member of the Amorian Dynasty, also known as the Phrygian Dynasty. He was given the disparaging epithet the Drunkard by the hostile historians of the succeeding Macedonian dynasty, but modern historical research has rehabilitated his reputation to some extent, demonstrating the vital role his reign played in the resurgence of Byzantine power in the 9th century

Died in 840

Mar 14 Einhard a Frankish scholar and courtier. Einhard was a dedicated servant of Charlemagne and his son Louis the Pious; his main work is a biography of Charlemagne, the Vita Karoli Magni, "one of the most precious literary bequests of the early Middle Ages."
Jun 20 Louis the Pious the King of Aquitaine from 781. He was also King of the Franks and co-Emperor with his father, Charlemagne, from 813