Irene of Athens
Millennialist movements were very common in Europe at that time. Between 760 and 780, a series of cosmic phenomena stirred up panic among the population of Gaul; John, a visionary monk, predicted the coming of the Last Judgment during the reign of Charlemagne. In this time the Apocalypse of Daniel appeared, a Syriac text redacted during the rule of the empress Irene of Athens, wherein wars between the Arabs, the Byzantines and the Northern peoples were prophesied. These wars would end with the coming of the Antichrist.