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On Christmas Day in what year did Pope Leo III crown Charlemagne Emperor of the Romans in St Peter's Basilica?
25 December 800. The coronation revived the title of Roman emperor in the West — extinct since the deposition of Romulus Augustulus in 476 — and founded what would later be called the Holy Roman Empire. 962 was Otto I's later coronation that the medieval institutional continuity sometimes starts from. 1066 was the Norman Conquest. 1215 was Magna Carta.
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Charlemagne Charlemagne (Charles the Great, c. 742–814 AD) was a Frankish king who united most of western and central Europe under his rule and was crowned Holy Roman Emperor by Pope Leo III on Christmas Day 800. He is the founder of the medieval European state system.
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